Central Taxonomic Thesaurus

Taxon Search
  Plantae
      Magnoliophyta
             [Angiospermae]
         Eudicots
             Core Eudicots
               Asterids
               Lamiids
                    Lamiales
                            Plantaginaceae
                                     Amphianthus
                                             Amphianthus pusillus
                                     Anarrhinum
                                             Anarrhinum bellidifolium
                                             Anarrhinum orientale
                                     Angelonia
                                             Angelonia angustifolia
                                             Angelonia campestris
                                             Angelonia gardneri
                                             Angelonia integerrima
                                             Angelonia pilosella
                                                   [Angelonia cubensis]
                                             Angelonia salicariifolia
                                     Antirrhinum
                                             Antirrhinum bellidifolium
                                             Antirrhinum breweri
                                             Antirrhinum calycinum
                                             Antirrhinum cornutum
                                               Antirrhinum cornutum var. leptaleum
                                             Antirrhinum costatum
                                             Antirrhinum elatine
                                             Antirrhinum emarginatum
                                             Antirrhinum glandulosum
                                             Antirrhinum hookerianum
                                             Antirrhinum kelloggii
                                             Antirrhinum leptaleum
                                             Antirrhinum majus
                                               Antirrhinum majus ssp. linkianum
                                             Antirrhinum multiflorum
                                             Antirrhinum orontium
                                               Antirrhinum orontium var. grandiflorum
                                             Antirrhinum ovatum
                                             Antirrhinum pusillum
                                             Antirrhinum spurium
                                             Antirrhinum subcordatum
                                             Antirrhinum vagans
                                             Antirrhinum vexillo-calyculatum
                                               Antirrhinum vexillo-calyculatum ssp. breweri
                                               Antirrhinum vexillo-calyculatum ssp. intermedium
                                               Antirrhinum vexillo-calyculatum ssp. vexillo-calyculatum
                                             Antirrhinum vexillocalyculatum
                                               Antirrhinum vexillocalyculatum ssp. breweri
                                               Antirrhinum vexillocalyculatum ssp. intermedium
                                             Antirrhinum virga
                                             Antirrhinum watsonii
                                     Asarina
                                             Asarina erubescens
                                             Asarina petrophila
                                             Asarina stricta
                                     Bacopa
                                             Bacopa acuminata
                                               Bacopa acuminata var. microphylla
                                             Bacopa axillaris
                                             Bacopa caroliniana
                                             Bacopa cyclophylla
                                             Bacopa domingensis
                                             Bacopa egensis
                                             Bacopa eisenii
                                             Bacopa humifusa
                                             Bacopa innominata
                                             Bacopa micromonnieria
                                             Bacopa monnieri
                                                   [Bramia monnieri]
                                                   [Lysimachia monnieri]
                                             Bacopa monnierioides
                                                   [Bacopa beccabunga]
                                             Bacopa repens
                                                   [Gratiola repens]
                                                   [Macuillamia obovata]
                                                   [Macuillamia repens]
                                             Bacopa rotundifolia
                                                   [Bacopa nobsiana]
                                                   [Bacopa simulans]
                                                   [Bramia rotundifolia]
                                                   [Hydranthelium rotundifolium]
                                                   [Macuillamia rotundifolia]
                                             Bacopa salzmannii
                                             Bacopa sessiliflora
                                             Bacopa stemodioides
                                                   [Caconapea stemodioides]
                                             Bacopa stragula
                                             Bacopa stricta
                                     Basistemon
                                     Benjaminia
                                     Besseya
                                             Besseya alpina
                                                   [Synthyris alpina]
                                             Besseya arizonica
                                             Besseya bullii
                                             Besseya cinerea
                                             Besseya plantaginea
                                             Besseya ritteriana
                                                   [Synthyris ritteriana var. obtusa]
                                                   [Synthyris ritteriana]
                                             Besseya rubra
                                             Besseya wyomingensis
                                     Bougueria
                                     Bramia
                                     Caconapea
                                             Caconapea stricta
                                     Callitriche
                                             Callitriche bifida
                                             Callitriche bolanderi
                                             Callitriche deflexa
                                             Callitriche fassettii
                                             Callitriche hamulata
                                             Callitriche hermaphroditica
                                                   [Callitriche autumnalis]
                                             Callitriche heterophylla
                                               Callitriche heterophylla ssp. bolanderi
                                               Callitriche heterophylla ssp. heterophylla
                                                     [Callitriche anceps]
                                                     [Callitriche heterophylla var. heterophylla]
                                               Callitriche heterophylla var. bolanderi
                                             Callitriche intermedia
                                               Callitriche intermedia ssp. hamulata
                                               Callitriche intermedia ssp. intermedia
                                             Callitriche longipedunculata
                                             Callitriche marginata
                                               Callitriche marginata var. longipedunculata
                                             Callitriche nuttallii
                                             Callitriche palustris
                                                   [Callitriche palustris var. verna]
                                                   [Callitriche verna]
                                             Callitriche pedunculosa
                                             Callitriche peploides
                                               Callitriche peploides var. semialata
                                             Callitriche platycarpa
                                             Callitriche sepulta
                                             Callitriche stagnalis
                                             Callitriche terrestris
                                                   [Callitriche austinii]
                                                   [Callitriche deflexa var. austinii]
                                                   [Callitriche deflexa var. subsessilis]
                                             Callitriche trochlearis
                                     Chaenorhinum
                                             Chaenorhinum calycinum
                                             Chaenorhinum minus
                                     Chelone
                                             Chelone chlorantha
                                             Chelone cuthbertii
                                             Chelone glabra
                                               Chelone glabra var. chlorantha
                                               Chelone glabra var. dilatata
                                               Chelone glabra var. elatior
                                               Chelone glabra var. elongata
                                               Chelone glabra var. linifolia
                                               Chelone glabra var. ochroleuca
                                               Chelone glabra var. typica
                                             Chelone grimesii
                                             Chelone lyonii
                                             Chelone montana
                                             Chelone obliqua
                                               Chelone obliqua var. erwiniae
                                               Chelone obliqua var. obliqua
                                               Chelone obliqua var. speciosa
                                     Chionophila
                                             Chionophila jamesii
                                             Chionophila tweedyi
                                     Collinsia
                                             Collinsia antonina
                                               Collinsia antonina ssp. purpurea
                                             Collinsia arvensis
                                             Collinsia austromontana
                                             Collinsia bartsiaefolia
                                             Collinsia bartsiifolia
                                               Collinsia bartsiifolia var. bartsiifolia
                                               Collinsia bartsiifolia var. davidsonii
                                               Collinsia bartsiifolia var. hirsuta
                                               Collinsia bartsiifolia var. stricta
                                             Collinsia bicolor
                                               Collinsia bicolor var. austromontana
                                             Collinsia breviflora
                                             Collinsia bruceae
                                             Collinsia callosa
                                             Collinsia childii
                                             Collinsia concolor
                                             Collinsia corymbosa
                                             Collinsia davidsonii
                                             Collinsia franciscana
                                             Collinsia grandiflora
                                             Collinsia greenei
                                             Collinsia heterophylla
                                               Collinsia heterophylla var. austromontana
                                               Collinsia heterophylla var. heterophylla
                                             Collinsia linearis
                                             Collinsia monticola
                                             Collinsia multicolor
                                             Collinsia parryi
                                             Collinsia parviflora
                                                   [Antirrhinum tenellum]
                                                   [Collinsia grandiflora var. pusilla]
                                                   [Collinsia tenella]
                                               Collinsia parviflora var. grandiflora
                                               Collinsia parviflora var. collina
                                             Collinsia parvula
                                             Collinsia rattani
                                             Collinsia rattanii
                                               Collinsia rattanii ssp. glandulosa
                                               Collinsia rattanii ssp. rattanii
                                               Collinsia rattanii var. linearis
                                             Collinsia solitaria
                                             Collinsia sparsiflora
                                               Collinsia sparsiflora var. arvensis
                                               Collinsia sparsiflora var. bruceae
                                               Collinsia sparsiflora var. collina
                                               Collinsia sparsiflora var. sparsiflora
                                               Collinsia sparsiflora var. solitaria
                                             Collinsia stricta
                                             Collinsia tinctoria
                                             Collinsia torreyi
                                               Collinsia torreyi var. brevicarinata
                                               Collinsia torreyi var. latifolia
                                               Collinsia torreyi var. torreyi
                                               Collinsia torreyi var. wrightii
                                             Collinsia verna
                                             Collinsia violacea
                                             Collinsia wrightii
                                     Conobea
                                             Conobea multifida
                                             Conobea polystachya
                                     Cymbalaria
                                             Cymbalaria muralis
                                     Digitalis
                                             Digitalis ambigua
                                             Digitalis ferruginea
                                             Digitalis grandiflora
                                             Digitalis lanata
                                             Digitalis lutea
                                             Digitalis mariana
                                               Digitalis mariana ssp. heywoodii
                                             Digitalis orientalis
                                             Digitalis purpurea
                                               Digitalis purpurea ssp. amandiana
                                               Digitalis purpurea ssp. heywoodii
                                               Digitalis purpurea ssp. purpurea
                                               Digitalis purpurea var. alba
                                               Digitalis purpurea var. amandiana
                                               Digitalis purpurea var. gloxiniiflora
                                               Digitalis purpurea var. tomentosa
                                     Dopatrium
                                             Dopatrium junceum
                                     Epixiphium
                                     Erinus
                                             Erinus alpinus
                                             Erinus verticillatus
                                     Galvesia
                                     Galvezia
                                             Galvezia fruticosa
                                             Galvezia glabrata
                                             Galvezia rupicola
                                             Galvezia speciosa
                                     Gambelia
                                           [Kuhlia]
                                             Gambelia juncea
                                                   [Galvezia juncea ]
                                                   [Galvezia juncea var. foliosa]
                                                   [Galvezia juncea var. pubescens]
                                             Gambelia speciosa
                                     Globifera
                                             Globifera umbrosa
                                     Gratiola
                                             Gratiola aurea
                                               Gratiola aurea var. obtusa
                                             Gratiola brevifolia
                                             Gratiola drummondii
                                             Gratiola ebracteata
                                             Gratiola flava
                                             Gratiola floridana
                                             Gratiola heterosepala
                                             Gratiola hispida
                                             Gratiola lutea
                                             Gratiola mexicana
                                             Gratiola neglecta
                                                   [Gratiola neglecta var. glaberrima]
                                             Gratiola officinalis
                                             Gratiola oresbia
                                             Gratiola pilosa
                                               Gratiola pilosa var. epilis
                                             Gratiola ramosa
                                             Gratiola sphaerocarpa
                                             Gratiola subulata
                                             Gratiola virginiana
                                               Gratiola virginiana var. aestuariorum
                                               Gratiola virginiana var. virginiana
                                             Gratiola viscidula
                                               Gratiola viscidula ssp. shortii
                                               Gratiola viscidula var. shortii
                                             Gratiola viscosa
                                     Hebe
                                             Hebe andersonii
                                             Hebe salicifolia
                                             Hebe speciosa
                                             Hebe venustula
                                             Hebe x franciscana
                                     Herpestis
                                             Herpestis auriculata
                                             Herpestis rotundifolia
                                             Herpestis salzmannii
                                     Hippuris
                                             Hippuris montana
                                             Hippuris tetraphylla
                                             Hippuris vulgaris
                                     Holmgrenanthe
                                             Holmgrenanthe petrophila
                                                   [Maurandella petrophila]
                                     Howelliella
                                             Howelliella ovata
                                     Hydranthelium
                                     Isoplexis
                                             Isoplexis canariensis
                                     Keckiella
                                             Keckiella antirrhinoides
                                                   [Penstemon antirrhinoides]
                                               Keckiella antirrhinoides ssp. antirrhinoides
                                                     [Keckiella antirrhinoides var. antirrhinoides]
                                               Keckiella antirrhinoides ssp. microphylla
                                                     [Keckiella antirrhinoides var. microphylla]
                                                     [Penstemon antirrhinoides ssp. microphyllus]
                                                     [Penstemon microphyllus]
                                             Keckiella breviflora
                                               Keckiella breviflora ssp. breviflora
                                               Keckiella breviflora ssp. glabrisepala
                                               Keckiella breviflora var. breviflora
                                               Keckiella breviflora var. glabrisepala
                                             Keckiella cordifolia
                                                   [Penstemon cordifolius]
                                             Keckiella corymbosa
                                             Keckiella lemmonii
                                             Keckiella rothrockii
                                               Keckiella rothrockii ssp. jacintensis
                                               Keckiella rothrockii ssp. rothrockii
                                               Keckiella rothrockii var. jacintensis
                                               Keckiella rothrockii var. rothrockii
                                             Keckiella ternata
                                               Keckiella ternata ssp. septentrionalis
                                               Keckiella ternata ssp. ternata
                                               Keckiella ternata var. septentrionalis
                                               Keckiella ternata var. ternata
                                     Kickxia
                                             Kickxia acerbiana
                                             Kickxia elatine
                                             Kickxia spartioides
                                             Kickxia spuria
                                     Lagotis
                                             Lagotis glauca
                                               Lagotis glauca ssp. minor
                                               Lagotis glauca var. stelleri
                                             Lagotis minor
                                             Lagotis stelleri
                                     Leiostemon
                                             Leiostemon ambiguus
                                     Lendneria
                                             Lendneria verticillata
                                     Leptandra
                                             Leptandra virginica
                                     Leucospora
                                             Leucospora multifida
                                     Limnophila
                                             Limnophila aromatica
                                             Limnophila fragrans
                                             Limnophila indica
                                             Limnophila sessiliflora
                                             Limnophila x ludoviciana
                                     Linaria
                                             Linaria aeruginea
                                             Linaria angustissima
                                             Linaria bipartita
                                             Linaria cymbalaria
                                             Linaria dalmatica
                                               Linaria dalmatica ssp. dalmatica
                                                     [Linaria genistifolia ssp. dalmatica]
                                                     [Linaria jattae]
                                               Linaria dalmatica ssp. macedonica
                                                     [Linaria dalmatica var. macedonica]
                                                     [Linaria macedonica]
                                             Linaria elatine
                                             Linaria floridana
                                             Linaria genistifolia
                                             Linaria incarnata
                                             Linaria italica
                                             Linaria joppensis
                                             Linaria kurdica
                                             Linaria maroccana
                                             Linaria minor
                                             Linaria pinifolia
                                             Linaria purpurea
                                             Linaria repens
                                             Linaria reticulata
                                             Linaria spartea
                                             Linaria supina
                                             Linaria vulgaris
                                                   [Linaria linaria]
                                             Linaria x sepium
                                     Littorella
                                             Littorella americana
                                             Littorella uniflora
                                               Littorella uniflora var. americana
                                     Lophospermum
                                             Lophospermum breedlovei
                                             Lophospermum erubescens
                                             Lophospermum purpusii
                                     Mabrya
                                             Mabrya acerifolia
                                                   [Asarina acerifolia]
                                                   [Maurandya acerifolia]
                                             Mabrya erecta
                                             Mabrya geniculata
                                               Mabrya geniculata ssp. geniculata
                                               Mabrya geniculata ssp. lanata
                                     Macuillamia
                                     Maurandella
                                     Maurandya
                                             Maurandya antirrhiniflora
                                                   [Antirrhinum maurandioides]
                                                   [Asarina antirrhiniflora]
                                                   [Maurandella antirrhiniflora]
                                               Maurandya antirrhiniflora ssp. antirrhiniflora
                                             Maurandya barclaiana
                                                   [Asarina barclaiana]
                                             Maurandya coccinea
                                             Maurandya erecta
                                             Maurandya erubescens
                                             Maurandya flaviflora
                                                   [Asarina flaviflora]
                                             Maurandya petrophila
                                             Maurandya purpusii
                                             Maurandya scandens
                                             Maurandya wislizeni
                                                   [Antirrhinum wislizeni]
                                                   [Asarina wislizeni]
                                                   [Epixiphium wislizeni]
                                             Maurandya wislizenii
                                     Mecardonia
                                             Mecardonia acuminata
                                               Mecardonia acuminata var. acuminata
                                               Mecardonia acuminata var. microphylla
                                               Mecardonia acuminata var. peninsularis
                                             Mecardonia exilis
                                             Mecardonia procumbens
                                                   [Bacopa procumbens]
                                                   [Erinus procumbens]
                                                   [Herpestis vandellioides]
                                                   [Mecardonia dianthera]
                                                   [Mecardonia peduncularis]
                                                   [Mecardonia tenuis]
                                                   [Mecardonia vandellioides]
                                     Melosperma
                                     Misopates
                                             Misopates orontium
                                     Mohavea
                                             Mohavea breviflora
                                             Mohavea confertiflora
                                             Mohavea viscida
                                     Moniera
                                             Moniera trifolia
                                     Monniera
                                             Monniera acuminata
                                             Monniera rotundifolia
                                     Monttea
                                             Monttea aphylla
                                     Neogaerrhinum
                                             Neogaerrhinum filipes
                                                   [Antirrhinum cooperi]
                                                   [Antirrhinum filipes]
                                                   [Asarina filipes]
                                             Neogaerrhinum kelloggii
                                             Neogaerrhinum strictum
                                     Nothochelone
                                             Nothochelone nemorosa
                                     Nuttallanthus
                                             Nuttallanthus canadensis
                                                   [Linaria canadensis]
                                             Nuttallanthus floridanus
                                             Nuttallanthus texanus
                                                   [Linaria canadensis var. texana]
                                                   [Linaria texana]
                                     Ourisia
                                             Ourisia californica
                                     Pagesia
                                             Pagesia acuminata
                                             Pagesia peduncularis
                                     Penstemon
                                           [Penstemon x hybridus]
                                             Penstemon X crideri
                                             Penstemon X mirus
                                             Penstemon abietinus
                                             Penstemon aboriginum
                                             Penstemon absarokensis
                                             Penstemon acaulis
                                               Penstemon acaulis var. yampaensis
                                             Penstemon acuminatus
                                               Penstemon acuminatus var. acuminatus
                                               Penstemon acuminatus var. latebracteatus
                                             Penstemon alamosensis
                                             Penstemon albertinus
                                             Penstemon albidus
                                             Penstemon albifluvis
                                             Penstemon albomarginatus
                                             Penstemon alluviorum
                                             Penstemon alpinus
                                               Penstemon alpinus ssp. brandegeei
                                               Penstemon alpinus ssp. magnus
                                             Penstemon ambiguus
                                               Penstemon ambiguus var. ambiguus
                                               Penstemon ambiguus var. laevissimus
                                                     [Penstemon ambiguus ssp. laevissimus]
                                             Penstemon ammophilus
                                             Penstemon amphorellae
                                             Penstemon anguineus
                                             Penstemon angustifolius
                                               Penstemon angustifolius var. angustifolius
                                               Penstemon angustifolius var. caudatus
                                                     [Penstemon angustifolius ssp. caudatus]
                                                     [Penstemon caudatus]
                                               Penstemon angustifolius var. dulcis
                                               Penstemon angustifolius var. venosus
                                                     [Penstemon angustifolius ssp. venosus]
                                                     [Penstemon venosus]
                                               Penstemon angustifolius var. vernalensis
                                             Penstemon apateticus
                                               Penstemon apateticus ssp. durangensis
                                               Penstemon apateticus ssp. townsendianus
                                             Penstemon arenarius
                                             Penstemon arenicola
                                             Penstemon aridus
                                             Penstemon arizonicus
                                             Penstemon arkansanus
                                               Penstemon arkansanus var. pubescens
                                             Penstemon assurgens
                                             Penstemon attenuatus
                                               Penstemon attenuatus ssp. attenuatus
                                               Penstemon attenuatus ssp. hyacinthinus
                                               Penstemon attenuatus ssp. militaris
                                               Penstemon attenuatus ssp. palustris
                                               Penstemon attenuatus ssp. pseudoprocerus
                                               Penstemon attenuatus var. attenuatus
                                               Penstemon attenuatus var. hyacinthinus
                                               Penstemon attenuatus var. militaris
                                               Penstemon attenuatus var. palustris
                                               Penstemon attenuatus var. pseudoprocerus
                                                     [Penstemon pseudoprocerus]
                                             Penstemon atwoodii
                                             Penstemon auriberbis
                                             Penstemon australis
                                               Penstemon australis ssp. laxiflorus
                                               Penstemon australis var. ameles
                                             Penstemon azureus
                                               Penstemon azureus ssp. angustissimus
                                               Penstemon azureus ssp. azureus
                                               Penstemon azureus var. ambiguus
                                               Penstemon azureus var. angustissimus
                                               Penstemon azureus var. azureus
                                               Penstemon azureus var. parvulus
                                             Penstemon baccharifolius
                                             Penstemon barbatus
                                                   [Penstemon barbatus var. coccineus]
                                               Penstemon barbatus ssp. barbatus
                                                     [Penstemon barbatus var. puberulus]
                                               Penstemon barbatus ssp. torreyi
                                                     [Penstemon barbatus var. torreyi]
                                                     [Penstemon torreyi]
                                               Penstemon barbatus ssp. trichander
                                                     [Penstemon barbatus var. trichander]
                                               Penstemon barbatus var. barbatus
                                             Penstemon barnebyi
                                             Penstemon barrettiae
                                             Penstemon bicolor
                                               Penstemon bicolor ssp. bicolor
                                               Penstemon bicolor ssp. roseus
                                               Penstemon bicolor ssp. typicus
                                             Penstemon bracteatus
                                             Penstemon brandegeei
                                             Penstemon brandegei
                                             Penstemon breviculus
                                                   [Penstemon jamesii ssp. breviculus]
                                             Penstemon breviflorus
                                               Penstemon breviflorus ssp. glabrisepalus
                                             Penstemon brevisepalus
                                             Penstemon brittoniorum
                                             Penstemon bryantae
                                             Penstemon bryantiae
                                             Penstemon buckleyi
                                             Penstemon caesius
                                             Penstemon caespitosus
                                               Penstemon caespitosus ssp. perbrevis
                                               Penstemon caespitosus var. caespitosus
                                               Penstemon caespitosus var. desertipicti
                                                     [Penstemon caespitosus ssp. desertipicti]
                                               Penstemon caespitosus var. perbrevis
                                               Penstemon caespitosus var. suffruticosus
                                             Penstemon calcareus
                                             Penstemon californicus
                                             Penstemon calycosus
                                             Penstemon campanulatus
                                                   [Penstemon campanulatus f. pulchellus]
                                                   [Penstemon pulchellus]
                                               Penstemon campanulatus ssp. chihuahuensis
                                               Penstemon campanulatus ssp. subglandulosus
                                             Penstemon canescens
                                               Penstemon canescens var. brittoniorum
                                               Penstemon canescens var. typicus
                                             Penstemon cardinalis
                                               Penstemon cardinalis ssp. cardinalis
                                               Penstemon cardinalis ssp. regalis
                                             Penstemon cardwellii
                                             Penstemon carnosus
                                             Penstemon caryi
                                             Penstemon cedrosensis
                                             Penstemon centranthifolius
                                             Penstemon cephalanthus
                                             Penstemon cephalophorus
                                             Penstemon chionophilus
                                             Penstemon cinereus
                                               Penstemon cinereus ssp. foliatus
                                               Penstemon cinereus var. foliatus
                                             Penstemon cinicola
                                             Penstemon cleburnei
                                             Penstemon clevelandii
                                               Penstemon clevelandii ssp. angelicus
                                               Penstemon clevelandii ssp. clevelandii
                                               Penstemon clevelandii ssp. connatus
                                               Penstemon clevelandii ssp. mohavensis
                                               Penstemon clevelandii ssp. typicus
                                               Penstemon clevelandii var. clevelandii
                                               Penstemon clevelandii var. connatus
                                               Penstemon clevelandii var. mohavensis
                                             Penstemon clutei
                                             Penstemon cobaea
                                                   [Penstemon cobaea ssp. purpureus]
                                                   [Penstemon cobaea ssp. typicus]
                                                   [Penstemon cobaea var. purpureus]
                                             Penstemon coccinatus
                                             Penstemon coccineus
                                               Penstemon coccineus var. filifolius
                                             Penstemon comarrhenus
                                             Penstemon compactus
                                             Penstemon concinnus
                                             Penstemon confertus
                                               Penstemon confertus ssp. procerus
                                               Penstemon confertus var. caeruleo-purpureus
                                               Penstemon confertus var. procerus
                                             Penstemon confusus
                                               Penstemon confusus ssp. patens
                                               Penstemon confusus var. patens
                                             Penstemon connatifolius
                                             Penstemon corymbosus
                                               Penstemon corymbosus var. puberulentus
                                             Penstemon crandallii
                                               Penstemon crandallii ssp. atratus
                                               Penstemon crandallii ssp. crandallii
                                               Penstemon crandallii ssp. glabrescens
                                               Penstemon crandallii ssp. procumbens
                                               Penstemon crandallii ssp. taosensis
                                               Penstemon crandallii var. atratus
                                               Penstemon crandallii var. taosensis
                                             Penstemon crassifolius
                                             Penstemon cristatus
                                             Penstemon cusickii
                                             Penstemon cyananthus
                                                   [Penstemon cyananthus ssp. cyananthus]
                                               Penstemon cyananthus ssp. compactus
                                               Penstemon cyananthus ssp. longiflorus
                                               Penstemon cyananthus ssp. subglaber
                                               Penstemon cyananthus var. brandegei
                                               Penstemon cyananthus var. compactus
                                               Penstemon cyananthus var. cyananthus
                                               Penstemon cyananthus var. longiflorus
                                               Penstemon cyananthus var. subglaber
                                             Penstemon cyaneus
                                             Penstemon cyanocaulis
                                             Penstemon cyathophorus
                                             Penstemon dasyphyllus
                                             Penstemon davidsonii
                                               Penstemon davidsonii ssp. menziesii
                                               Penstemon davidsonii var. davidsonii
                                               Penstemon davidsonii var. ellipticus
                                               Penstemon davidsonii var. menziesii
                                               Penstemon davidsonii var. praeteritus
                                             Penstemon deamii
                                             Penstemon deaveri
                                                   [Penstemon virgatus ssp. arizonicus]
                                             Penstemon debilis
                                             Penstemon decurvus
                                             Penstemon degeneri
                                             Penstemon deserticola
                                             Penstemon desertipicti
                                             Penstemon desertorum
                                             Penstemon deustus
                                               Penstemon deustus ssp. deustus
                                               Penstemon deustus ssp. heterander
                                               Penstemon deustus ssp. sudans
                                               Penstemon deustus ssp. variabilis
                                               Penstemon deustus var. deustus
                                               Penstemon deustus var. heterander
                                               Penstemon deustus var. pedicellatus
                                               Penstemon deustus var. suffrutescens
                                               Penstemon deustus var. variabilis
                                             Penstemon diffusus
                                             Penstemon digitalis
                                             Penstemon dimorphus
                                             Penstemon diphyllus
                                             Penstemon discolor
                                             Penstemon dissectus
                                             Penstemon distans
                                             Penstemon dolius
                                               Penstemon dolius var. dolius
                                               Penstemon dolius var. duchesnensis
                                             Penstemon dubium
                                             Penstemon duchesnensis
                                             Penstemon eatonii
                                               Penstemon eatonii ssp. eatonii
                                                     [Penstemon eatonii var. eatonii]
                                               Penstemon eatonii ssp. exsertus
                                               Penstemon eatonii ssp. undosus
                                                     [Penstemon eatonii var. undosus]
                                             Penstemon elegantulus
                                             Penstemon ellipticus
                                             Penstemon eriantherus
                                               Penstemon eriantherus var. argillosus
                                               Penstemon eriantherus var. cleburnei
                                               Penstemon eriantherus var. eriantherus
                                               Penstemon eriantherus var. redactus
                                               Penstemon eriantherus var. whitedii
                                             Penstemon euglaucus
                                             Penstemon eximius
                                             Penstemon exsertus
                                             Penstemon fasciculatus
                                             Penstemon fendleri
                                             Penstemon filiformis
                                             Penstemon flavescens
                                             Penstemon floribundus
                                             Penstemon floridus
                                               Penstemon floridus ssp. austinii
                                               Penstemon floridus var. austinii
                                               Penstemon floridus var. floridus
                                             Penstemon flowersii
                                             Penstemon francisci-pennellii
                                             Penstemon franklinii
                                             Penstemon fremontii
                                               Penstemon fremontii var. fremontii
                                               Penstemon fremontii var. glabrescens
                                             Penstemon fruticiformis
                                               Penstemon fruticiformis ssp. amargosae
                                                     [Penstemon fruticiformis var. amargosae]
                                               Penstemon fruticiformis ssp. fruticiformis
                                               Penstemon fruticiformis var. fruticiformis
                                             Penstemon fruticosus
                                               Penstemon fruticosus ssp. scouleri
                                               Penstemon fruticosus ssp. serratus
                                               Penstemon fruticosus var. albus
                                               Penstemon fruticosus var. fruticosus
                                               Penstemon fruticosus var. scouleri
                                               Penstemon fruticosus var. serratus
                                             Penstemon gairdneri
                                               Penstemon gairdneri ssp. hians
                                               Penstemon gairdneri var. gairdneri
                                               Penstemon gairdneri var. hians
                                               Penstemon gairdneri var. oreganus
                                                     [Penstemon gairdneri ssp. oreganus]
                                                     [Penstemon puberulentus]
                                             Penstemon galloensis
                                             Penstemon garrettii
                                             Penstemon gentianoides
                                             Penstemon gentryi
                                             Penstemon gibbensii
                                             Penstemon glaber
                                               Penstemon glaber var. alpinus
                                               Penstemon glaber var. brandegeei
                                               Penstemon glaber var. brandegei
                                               Penstemon glaber var. cyananthus
                                               Penstemon glaber var. glaber
                                               Penstemon glaber var. speciosus
                                               Penstemon glaber var. utahensis
                                             Penstemon glabrescens
                                             Penstemon glandulosus
                                               Penstemon glandulosus ssp. chelanensis
                                               Penstemon glandulosus var. chelanensis
                                               Penstemon glandulosus var. glandulosus
                                             Penstemon glaucinus
                                             Penstemon glaucus
                                               Penstemon glaucus var. stenosepalus
                                             Penstemon globosus
                                             Penstemon goodrichii
                                             Penstemon gormanii
                                             Penstemon gracilentus
                                               Penstemon gracilentus var. ursorum
                                             Penstemon gracilis
                                               Penstemon gracilis ssp. wisconsinensis
                                               Penstemon gracilis var. gracilis
                                               Penstemon gracilis var. wisconsinensis
                                             Penstemon grahamii
                                             Penstemon grandiflorus
                                                   [Penstemon bradburii]
                                             Penstemon griffinii
                                             Penstemon grinnellii
                                               Penstemon grinnellii ssp. grinnellii
                                               Penstemon grinnellii ssp. scrophularioides
                                               Penstemon grinnellii var. grinnellii
                                               Penstemon grinnellii var. scrophularioides
                                             Penstemon guadalupensis
                                                   [Penstemon guadalupensis var. ernstii]
                                             Penstemon hallii
                                               Penstemon hallii var. arizonicus
                                             Penstemon hansonii
                                             Penstemon harbourii
                                             Penstemon harringtonii
                                             Penstemon hartwegii
                                             Penstemon havardii
                                             Penstemon haydenii
                                             Penstemon helleri
                                             Penstemon henricksonii
                                             Penstemon hesperius
                                             Penstemon heterodoxus
                                               Penstemon heterodoxus ssp. cephalophorus
                                               Penstemon heterodoxus var. cephalophorus
                                               Penstemon heterodoxus var. heterodoxus
                                               Penstemon heterodoxus var. shastensis
                                             Penstemon heterophyllus
                                               Penstemon heterophyllus ssp. australis
                                               Penstemon heterophyllus ssp. heterophyllus
                                               Penstemon heterophyllus ssp. purdyi
                                               Penstemon heterophyllus var. australis
                                               Penstemon heterophyllus var. heterophyllus
                                               Penstemon heterophyllus var. latifolius
                                               Penstemon heterophyllus var. purdyi
                                             Penstemon higginsii
                                             Penstemon hirsutus
                                               Penstemon hirsutus var. minimus
                                               Penstemon hirsutus var. pygmaeus
                                             Penstemon holmgrenii
                                             Penstemon humilis
                                               Penstemon humilis ssp. brevifolius
                                               Penstemon humilis ssp. humilis
                                               Penstemon humilis ssp. obtusifolius
                                               Penstemon humilis var. brevifolius
                                               Penstemon humilis var. deserticus
                                               Penstemon humilis var. foliatus
                                               Penstemon humilis var. humilis
                                               Penstemon humilis var. obtusifolius
                                             Penstemon idahoensis
                                             Penstemon immanifestus
                                             Penstemon incertus
                                             Penstemon inflatus
                                             Penstemon intonsus
                                             Penstemon isophyllus
                                             Penstemon jamesii
                                                   [Penstemon brevibarbatus]
                                                   [Penstemon jamesii ssp. typicus]
                                             Penstemon janishiae
                                             Penstemon jonesii
                                             Penstemon kingii
                                             Penstemon kunthii
                                             Penstemon labrosus
                                             Penstemon lacerellus
                                             Penstemon laetus
                                               Penstemon laetus ssp. filiformis
                                               Penstemon laetus ssp. laetus
                                               Penstemon laetus ssp. leptosepalus
                                               Penstemon laetus ssp. sagittatus
                                               Penstemon laetus ssp. typicus
                                               Penstemon laetus var. laetus
                                               Penstemon laetus var. leptosepalus
                                               Penstemon laetus var. sagittatus
                                             Penstemon laevigatus
                                                   [Penstemon penstemon]
                                               Penstemon laevigatus ssp. alluviorum
                                               Penstemon laevigatus ssp. calycosus
                                               Penstemon laevigatus ssp. digitalis
                                               Penstemon laevigatus var. angulatus
                                               Penstemon laevigatus var. deamii
                                               Penstemon laevigatus var. digitalis
                                             Penstemon laevis
                                             Penstemon laricifolius
                                               Penstemon laricifolius ssp. exilifolius
                                               Penstemon laricifolius ssp. laricifolius
                                               Penstemon laricifolius var. exilifolius
                                               Penstemon laricifolius var. laricifolius
                                             Penstemon latiusculus
                                             Penstemon laxiflorus
                                             Penstemon laxus
                                             Penstemon leiophyllus
                                               Penstemon leiophyllus var. francisci-pennellii
                                               Penstemon leiophyllus var. keckii
                                                     [Penstemon keckii]
                                               Penstemon leiophyllus var. leiophyllus
                                             Penstemon lemhiensis
                                             Penstemon lemmonii
                                             Penstemon lentus
                                               Penstemon lentus ssp. albiflorus
                                               Penstemon lentus var. albiflorus
                                               Penstemon lentus var. lentus
                                             Penstemon leonardii
                                               Penstemon leonardii var. higginsii
                                               Penstemon leonardii var. leonardii
                                               Penstemon leonardii var. patricus
                                                     [Penstemon patricus]
                                             Penstemon leonensis
                                             Penstemon leptanthus
                                             Penstemon leucanthus
                                             Penstemon linarioides
                                               Penstemon linarioides ssp. coloradoensis
                                                     [Penstemon coloradoensis]
                                               Penstemon linarioides ssp. compactifolius
                                                     [Penstemon linarioides var. compactifolius]
                                               Penstemon linarioides ssp. linarioides
                                                     [Penstemon linarioides ssp. typicus]
                                               Penstemon linarioides ssp. maguirei
                                               Penstemon linarioides ssp. sileri
                                                     [Penstemon linarioides var. sileri]
                                                     [Penstemon linarioides var. viridis]
                                               Penstemon linarioides ssp. taosensis
                                             Penstemon longiflorus
                                             Penstemon lyallii
                                             Penstemon macranthus
                                             Penstemon magnus
                                             Penstemon maguirei
                                             Penstemon marcusii
                                             Penstemon mensarum
                                             Penstemon menziesii
                                               Penstemon menziesii ssp. davidsonii
                                               Penstemon menziesii ssp. thompsonii
                                               Penstemon menziesii var. davidsonii
                                             Penstemon metcalfei
                                             Penstemon militaris
                                             Penstemon miniatus
                                               Penstemon miniatus ssp. apateticus
                                               Penstemon miniatus ssp. townsendianus
                                             Penstemon minidokanus
                                             Penstemon mirus
                                             Penstemon miser
                                             Penstemon modestus
                                             Penstemon moffatii
                                               Penstemon moffatii ssp. marcusii
                                               Penstemon moffatii ssp. moffatii
                                               Penstemon moffatii ssp. paysonii
                                             Penstemon monoensis
                                             Penstemon montanus
                                               Penstemon montanus ssp. idahoensis
                                               Penstemon montanus ssp. montanus
                                               Penstemon montanus var. idahoensis
                                               Penstemon montanus var. montanus
                                             Penstemon moriahensis
                                             Penstemon multicaulis
                                             Penstemon multiflorus
                                             Penstemon murrayanus
                                             Penstemon nanus
                                             Penstemon navajoa
                                             Penstemon nemorosus
                                             Penstemon neomexicanus
                                             Penstemon neotericus
                                             Penstemon newberryi
                                               Penstemon newberryi ssp. berryi
                                                     [Penstemon berryi]
                                               Penstemon newberryi ssp. newberryi
                                               Penstemon newberryi ssp. sonomensis
                                               Penstemon newberryi var. berryi
                                               Penstemon newberryi var. newberryi
                                               Penstemon newberryi var. sonomensis
                                             Penstemon nitidus
                                               Penstemon nitidus ssp. polyphyllus
                                               Penstemon nitidus var. nitidus
                                               Penstemon nitidus var. polyphyllus
                                             Penstemon nudiflorus
                                             Penstemon nyeensis
                                             Penstemon obtusifolius
                                             Penstemon oklahomensis
                                             Penstemon oliganthus
                                             Penstemon ophianthus
                                                   [Penstemon jamesii ssp. ophianthus]
                                             Penstemon oreocharis
                                             Penstemon oreophilus
                                             Penstemon osterhoutii
                                             Penstemon ovatus
                                               Penstemon ovatus var. pinetorum
                                             Penstemon pachyphyllus
                                               Penstemon pachyphyllus var. congestus
                                                     [Penstemon congestus]
                                                     [Penstemon pachyphyllus ssp. congestus]
                                               Penstemon pachyphyllus var. mucronatus
                                                     [Penstemon mucronatus]
                                               Penstemon pachyphyllus var. pachyphyllus
                                             Penstemon pahutensis
                                             Penstemon pallidus
                                               Penstemon pallidus ssp. arkansanus
                                             Penstemon palmeri
                                               Penstemon palmeri var. eglandulosus
                                                     [Penstemon palmeri ssp. eglandulosus]
                                               Penstemon palmeri var. macranthus
                                               Penstemon palmeri var. palmeri
                                                     [Penstemon palmeri ssp. typicus]
                                             Penstemon papillatus
                                             Penstemon parishii
                                             Penstemon parryi
                                             Penstemon parviflorus
                                             Penstemon parvulus
                                             Penstemon parvus
                                             Penstemon patens
                                             Penstemon payettensis
                                             Penstemon paysoniorum
                                             Penstemon peckii
                                             Penstemon penlandii
                                             Penstemon pennellianus
                                             Penstemon perpulcher
                                             Penstemon personatus
                                             Penstemon petiolatus
                                             Penstemon piliferus
                                             Penstemon pinifolius
                                             Penstemon pinorum
                                             Penstemon platyphyllus
                                             Penstemon pratensis
                                             Penstemon procerus
                                               Penstemon procerus ssp. aberrans
                                               Penstemon procerus ssp. brachyanthus
                                               Penstemon procerus ssp. formosus
                                               Penstemon procerus ssp. modestus
                                               Penstemon procerus ssp. procerus
                                               Penstemon procerus ssp. tolmiei
                                               Penstemon procerus var. aberrans
                                               Penstemon procerus var. brachyanthus
                                                     [Penstemon brachyanthus]
                                               Penstemon procerus var. formosus
                                               Penstemon procerus var. modestus
                                               Penstemon procerus var. procerus
                                               Penstemon procerus var. tolmiei
                                             Penstemon procumbens
                                             Penstemon productus
                                               Penstemon productus var. rigidus
                                             Penstemon pruinosus
                                             Penstemon pseudohumilis
                                             Penstemon pseudoparvus
                                             Penstemon pseudoputus
                                                   [Penstemon virgatus ssp. pseudoputus]
                                             Penstemon pseudospectabilis
                                               Penstemon pseudospectabilis ssp. connatifolius
                                               Penstemon pseudospectabilis ssp. pseudospectabilis
                                                     [Penstemon pseudospectabilis ssp. typicus]
                                             Penstemon puberulus
                                             Penstemon pubescens
                                             Penstemon pudicus
                                             Penstemon pumilus
                                             Penstemon puniceus
                                             Penstemon purpusii
                                             Penstemon putus
                                                   [Penstemon virgatus ssp. putus]
                                             Penstemon radicosus
                                             Penstemon ramaleyi
                                             Penstemon ramosus
                                                   [Penstemon lanceolatus]
                                                   [Penstemon pauciflorus]
                                             Penstemon rattanii
                                               Penstemon rattanii ssp. kleei
                                               Penstemon rattanii ssp. rattanii
                                               Penstemon rattanii var. kleei
                                               Penstemon rattanii var. minor
                                               Penstemon rattanii var. rattanii
                                             Penstemon recurvatus
                                             Penstemon retrorsus
                                             Penstemon rhizomatosus
                                             Penstemon richardsonii
                                               Penstemon richardsonii ssp. curtiflorus
                                               Penstemon richardsonii var. curtiflorus
                                               Penstemon richardsonii var. dentatus
                                                     [Penstemon richardsonii ssp. dentatus]
                                               Penstemon richardsonii var. richardsonii
                                             Penstemon roezli
                                             Penstemon roezlii
                                                   [Penstemon cinerascens]
                                                   [Penstemon laetus ssp. roezlii]
                                                   [Penstemon laetus var. roezlii]
                                               Penstemon roezlii var. violaceus
                                             Penstemon roseus
                                             Penstemon rostriflorus
                                                   [Penstemon bridgesii var. amplexicaulis]
                                                   [Penstemon bridgesii]
                                             Penstemon rothrockii
                                               Penstemon rothrockii ssp. jacintensis
                                             Penstemon rotundifolius
                                             Penstemon rubicundus
                                             Penstemon rupicola
                                             Penstemon rydbergii
                                               Penstemon rydbergii var. aggregatus
                                                     [Penstemon aggregatus]
                                                     [Penstemon rydbergii ssp. aggregatus]
                                               Penstemon rydbergii var. oreocharis
                                               Penstemon rydbergii var. rydbergii
                                               Penstemon rydbergii var. varians
                                             Penstemon saxosorum
                                             Penstemon scabridus
                                             Penstemon scapoides
                                             Penstemon scariosus
                                               Penstemon scariosus var. albifluvis
                                               Penstemon scariosus var. cyanomontanus
                                               Penstemon scariosus var. garrettii
                                               Penstemon scariosus var. scariosus
                                             Penstemon scoparius
                                             Penstemon scouleri
                                             Penstemon secundiflorus
                                               Penstemon secundiflorus ssp. lavendulus
                                             Penstemon seorsus
                                             Penstemon sepalulus
                                             Penstemon serrulatus
                                             Penstemon shantzii
                                               Penstemon shantzii var. incognitus
                                             Penstemon shastensis
                                             Penstemon shockleyi
                                             Penstemon similis
                                             Penstemon smallii
                                             Penstemon sonomensis
                                             Penstemon spatulatus
                                             Penstemon speciosus
                                               Penstemon speciosus ssp. kennedyi
                                               Penstemon speciosus ssp. lemhiensis
                                               Penstemon speciosus ssp. typicus
                                               Penstemon speciosus var. piliferus
                                             Penstemon spectabilis
                                               Penstemon spectabilis ssp. spectabilis
                                               Penstemon spectabilis ssp. subinteger
                                               Penstemon spectabilis ssp. subviscosus
                                               Penstemon spectabilis var. spectabilis
                                               Penstemon spectabilis var. subviscosus
                                               Penstemon spectabilis var. gilmanii
                                             Penstemon spinulosus
                                             Penstemon stenophyllus
                                               Penstemon stenophyllus var. dasyphyllus
                                             Penstemon stenosepalus
                                             Penstemon stephensii
                                             Penstemon strictiformis
                                                   [Penstemon strictus ssp. strictiformis]
                                             Penstemon strictus
                                                   [Penstemon strictus ssp. angustus]
                                             Penstemon subglaber
                                             Penstemon subserratus
                                             Penstemon subulatus
                                             Penstemon sudans
                                             Penstemon suffrutescens
                                             Penstemon superbus
                                             Penstemon tenuiflorus
                                             Penstemon tenuis
                                             Penstemon ternatus
                                               Penstemon ternatus ssp. septentrionalis
                                             Penstemon teucrioides
                                             Penstemon thompsoniae
                                               Penstemon thompsoniae ssp. jaegeri
                                               Penstemon thompsoniae ssp. thompsoniae
                                                     [Penstemon thompsoniae var. desperatus]
                                               Penstemon thompsoniae ssp. typicus
                                             Penstemon thurberi
                                                   [Penstemon thurberi var. anestius]
                                             Penstemon tidestromii
                                             Penstemon tiehmii
                                             Penstemon tinctus
                                             Penstemon tolmiei
                                               Penstemon tolmiei ssp. brachyanthus
                                               Penstemon tolmiei ssp. formosus
                                             Penstemon tracyi
                                             Penstemon trichander
                                             Penstemon triflorus
                                               Penstemon triflorus ssp. integrifolius
                                               Penstemon triflorus ssp. triflorus
                                               Penstemon triflorus var. integrifolius
                                             Penstemon triphyllus
                                               Penstemon triphyllus ssp. diphyllus
                                               Penstemon triphyllus ssp. triphyllus
                                             Penstemon tubiflorus
                                               Penstemon tubiflorus var. achoreus
                                               Penstemon tubiflorus var. tubiflorus
                                             Penstemon tusharensis
                                             Penstemon uintahensis
                                             Penstemon unilateralis
                                                   [Penstemon virgatus ssp. asa-grayi]
                                                   [Penstemon virgatus var. asa-grayi]
                                             Penstemon utahensis
                                             Penstemon variabilis
                                             Penstemon vaseyanus
                                             Penstemon venustus
                                             Penstemon versicolor
                                             Penstemon virens
                                             Penstemon virgatus
                                                   [Penstemon virgatus ssp. virgatus]
                                               Penstemon virgatus var. virgatus
                                             Penstemon vizcainensis
                                             Penstemon wardii
                                             Penstemon washingtonensis
                                             Penstemon washoensis
                                             Penstemon watsonii
                                               Penstemon watsonii ssp. laxus
                                             Penstemon wherryi
                                             Penstemon whippleanus
                                             Penstemon whitedii
                                               Penstemon whitedii ssp. dayanus
                                               Penstemon whitedii ssp. tristis
                                               Penstemon whitedii ssp. whitedii
                                             Penstemon wilcoxii
                                             Penstemon wisconsinensis
                                             Penstemon wislizeni
                                             Penstemon wislizenii
                                             Penstemon wrightii
                                             Penstemon x dubius
                                             Penstemon x jonesii
                                             Penstemon x parishii
                                             Penstemon x peirsonii
                                             Penstemon xylus
                                             Penstemon yampaensis
                                     Plantago
                                             Plantago alismatifolia
                                             Plantago amplexicaulis
                                             Plantago argyraea
                                                   [Plantago purshii var. argyraea]
                                             Plantago argyrea
                                                   [Plantago purshii var. argyrea]
                                             Plantago aristata
                                                   [Plantago aristata var. nuttallii]
                                                   [Plantago patagonica var. aristata]
                                             Plantago australis
                                               Plantago australis ssp. hirtella
                                                     [Plantago hirtella ssp. galeottiana]
                                                     [Plantago hirtella var. annua]
                                                     [Plantago hirtella var. galeottiana]
                                                     [Plantago hirtella var. mollior]
                                                     [Plantago hirtella]
                                             Plantago barbata
                                             Plantago bellardi
                                             Plantago bigelovii
                                               Plantago bigelovii ssp. bigelovii
                                               Plantago bigelovii ssp. californica
                                                     [Plantago californica]
                                             Plantago canescens
                                               Plantago canescens var. cylindrica
                                             Plantago ciliata
                                             Plantago cordata
                                             Plantago coronopus
                                               Plantago coronopus ssp. commutata
                                             Plantago debilis
                                             Plantago decipiens
                                             Plantago depressa
                                             Plantago durvillei
                                               Plantago durvillei ssp. subnuda
                                               Plantago durvillei var. angustata
                                             Plantago elongata
                                               Plantago elongata ssp. elongata
                                               Plantago elongata ssp. pentasperma
                                             Plantago erecta
                                                   [Plantago erecta ssp. rigidior]
                                                   [Plantago hookeriana var. californica]
                                                   [Plantago patagonica var. californica]
                                             Plantago eriopoda
                                                   [Plantago shastensis]
                                             Plantago firma
                                             Plantago glabrifolia
                                             Plantago grayana
                                               Plantago grayana var. abrotanelloides
                                             Plantago hawaiensis
                                               Plantago hawaiensis var. laxa
                                             Plantago helleri
                                             Plantago heterophylla
                                             Plantago hillebrandii
                                             Plantago hispidula
                                             Plantago hookeriana
                                             Plantago ignota
                                             Plantago juncoides
                                               Plantago juncoides var. californica
                                               Plantago juncoides var. decipiens
                                               Plantago juncoides var. glauca
                                               Plantago juncoides var. laurentiana
                                             Plantago krajinae
                                             Plantago lagopus
                                             Plantago lanceolata
                                                   [Plantago altissima]
                                                   [Plantago lanceolata var. sphaerostachya]
                                             Plantago linearis
                                               Plantago linearis var. mexicana
                                             Plantago macrocarpa
                                             Plantago major
                                                   [Plantago asiatica]
                                                   [Plantago halophila]
                                                   [Plantago major ssp. intermedia]
                                                   [Plantago major var. asiatica]
                                                   [Plantago major var. intermedia]
                                                   [Plantago major var. pachyphylla]
                                                   [Plantago major var. pilgeri]
                                                   [Plantago major var. scopulorum]
                                             Plantago maritima
                                               Plantago maritima ssp. borealis
                                               Plantago maritima ssp. juncoides
                                               Plantago maritima ssp. serpentina
                                               Plantago maritima var. californica
                                               Plantago maritima var. juncoides
                                             Plantago media
                                               Plantago media var. monnieri
                                             Plantago melanochrous
                                             Plantago mexicana
                                             Plantago muscicola
                                             Plantago myosuroides
                                             Plantago nivea
                                             Plantago obversa
                                             Plantago occidentalis
                                             Plantago oliganthos
                                               Plantago oliganthos var. fallax
                                             Plantago ovata
                                                   [Plantago brunnea]
                                                   [Plantago gooddingii]
                                                   [Plantago insularis var. scariosa]
                                                   [Plantago insularis]
                                                   [Plantago minima]
                                               Plantago ovata var. fastigiata
                                                     [Plantago fastigiata]
                                                     [Plantago insularis var. fastigiata]
                                             Plantago pachyphylla
                                               Plantago pachyphylla var. maviensis
                                               Plantago pachyphylla var. rotundifolia
                                             Plantago patagonica
                                                   [Plantago patagonica var. breviscapa]
                                                   [Plantago patagonica var. gnaphalioides]
                                                   [Plantago patagonica var. oblonga]
                                                   [Plantago patagonica var. spinulosa]
                                                   [Plantago picta]
                                                   [Plantago purshii var. breviscapa]
                                                   [Plantago purshii var. oblonga]
                                                   [Plantago purshii var. picta]
                                                   [Plantago purshii var. spinulosa]
                                                   [Plantago purshii]
                                                   [Plantago spinulosa]
                                                   [Plantago wyomingensis]
                                             Plantago princeps
                                               Plantago princeps var. acaulis
                                               Plantago princeps var. anomala
                                               Plantago princeps var. denticulata
                                               Plantago princeps var. elata
                                               Plantago princeps var. hirtella
                                               Plantago princeps var. laxiflora
                                               Plantago princeps var. longibracteata
                                               Plantago princeps var. princeps
                                               Plantago princeps var. queleniana
                                             Plantago psyllium
                                                   [Plantago arenaria]
                                                   [Plantago indica]
                                                   [Plantago scabra]
                                             Plantago pusilla
                                                   [Plantago hybrida]
                                                   [Plantago pusilla var. major]
                                             Plantago rhodosperma
                                             Plantago rugelii
                                               Plantago rugelii var. asperula
                                               Plantago rugelii var. rugelii
                                             Plantago septata
                                             Plantago sparsiflora
                                             Plantago speciosa
                                             Plantago subnuda
                                             Plantago truncata
                                               Plantago truncata ssp. firma
                                             Plantago tweedyi
                                                   [Plantago eriopoda var. tweedyi]
                                             Plantago virginica
                                                   [Plantago virginica var. viridescens]
                                             Plantago wrightiana
                                                   [Plantago hookeriana var. nuda]
                                     Pocilla
                                             Pocilla agrestis
                                     Pseudolysimachion
                                             Pseudolysimachion longifolium
                                             Pseudolysimachion spicatum
                                             Pseudolysimachion spurium
                                     Pseudorontium
                                             Pseudorontium cyathiferum
                                                   [Antirrhinum cyathiferum]
                                     Rhodochiton
                                             Rhodochiton volubile
                                     Russelia
                                           [Phragmotheca]
                                             Russelia chiapensis
                                             Russelia coccinea
                                             Russelia contrerasii
                                             Russelia cuneata
                                             Russelia elongata
                                             Russelia equisetiformis
                                                   [Russelia juncea]
                                             Russelia floribunda
                                               Russelia floribunda var. pubescens
                                             Russelia furfuracea
                                             Russelia grandidentata
                                             Russelia lanceifolia
                                             Russelia multiflora
                                             Russelia obtusata
                                             Russelia parvifolia
                                             Russelia polyedra
                                             Russelia pringlei
                                             Russelia retrorsa
                                             Russelia sarmentosa
                                             Russelia sonorensis
                                               Russelia sonorensis var. pubescens
                                               Russelia sonorensis var. sonorensis
                                             Russelia standleyi
                                             Russelia tenuis
                                             Russelia ternifolia
                                             Russelia tetraptera
                                             Russelia villosa
                                             Russelia worthingtonii
                                     Sairocarpus
                                             Sairocarpus breweri
                                             Sairocarpus cornutus
                                             Sairocarpus coulterianus
                                                   [Antirrhinum coulterianum ssp. orcuttianum]
                                                   [Antirrhinum coulterianum]
                                             Sairocarpus elmeri
                                                   [Antirrhinum elmeri]
                                             Sairocarpus kingii
                                                   [Antirrhinum kingii]
                                             Sairocarpus multiflorus
                                             Sairocarpus nuttallianus
                                                   [Antirrhinum nuttallianum ssp. nuttallianum]
                                                   [Antirrhinum nuttallianum]
                                             Sairocarpus pusillus
                                                   [Antirrhinum nuttallianum ssp. subsessile]
                                                   [Antirrhinum subsessile]
                                             Sairocarpus subcordatus
                                             Sairocarpus vexillocalyculatus
                                             Sairocarpus virga
                                             Sairocarpus watsonii
                                                   [Antirrhinum kingii var. watsonii]
                                     Schistophragma
                                             Schistophragma intermedia
                                                   [Conobea intermedia]
                                                   [Leucospora intermedia var. intermedia]
                                                   [Leucospora intermedia var. subglabra]
                                                   [Leucospora intermedia]
                                                   [Schistophragma intermedium]
                                             Schistophragma mexicanum
                                                   [Leucospora mexicana]
                                             Schistophragma polystachyum
                                             Schistophragma pusilla
                                     Scoparia
                                             Scoparia annua
                                             Scoparia dulcis
                                             Scoparia flava
                                             Scoparia montevidensis
                                               Scoparia montevidensis var. glandulifera
                                     Sibthorpia
                                             Sibthorpia pichinchensis
                                             Sibthorpia repens
                                     Sophronanthe
                                             Sophronanthe hispida
                                             Sophronanthe pilosa
                                     Stemodia
                                             Stemodia bartsioides
                                             Stemodia durantifolia
                                                   [Capraria durantifolia]
                                                   [Stemodia arizonica]
                                               Stemodia durantifolia var. durantifolia
                                             Stemodia lanata
                                             Stemodia macrantha
                                             Stemodia maritima
                                             Stemodia palmeri
                                             Stemodia peduncularis
                                             Stemodia polystachya
                                             Stemodia pusilla
                                             Stemodia schottii
                                             Stemodia tenuifolia
                                             Stemodia tomentosa
                                             Stemodia verticillata
                                     Stemodiacra
                                     Synthyris
                                             Synthyris borealis
                                             Synthyris bullii
                                             Synthyris canbyi
                                             Synthyris cordata
                                             Synthyris cymopteroides
                                             Synthyris dissecta
                                             Synthyris flavescens
                                             Synthyris hendersonii
                                             Synthyris laciniata
                                               Synthyris laciniata ssp. ibapahensis
                                             Synthyris lanuginosa
                                             Synthyris missurica
                                               Synthyris missurica ssp. hirsuta
                                               Synthyris missurica ssp. missurica
                                               Synthyris missurica ssp. stellata
                                               Synthyris missurica var. major
                                             Synthyris oblongifolia
                                                   [Besseya oblongifolia]
                                             Synthyris paysonii
                                             Synthyris pinnatifida
                                               Synthyris pinnatifida var. canescens
                                               Synthyris pinnatifida var. laciniata
                                               Synthyris pinnatifida var. lanuginosa
                                               Synthyris pinnatifida var. pinnatifida
                                             Synthyris plantaginea
                                             Synthyris platycarpa
                                             Synthyris ranunculina
                                             Synthyris reniformis
                                               Synthyris reniformis var. cordata
                                               Synthyris reniformis var. major
                                               Synthyris reniformis var. reniformis
                                             Synthyris rubra
                                             Synthyris schizantha
                                             Synthyris stellata
                                     Tetranema
                                     Tonella
                                             Tonella floribunda
                                             Tonella tenella
                                     Tragiola
                                             Tragiola pilosa
                                               Tragiola pilosa ssp. epilis
                                     Uroskinnera
                                             Uroskinnera almedae
                                             Uroskinnera hirtiflora
                                             Uroskinnera spectabilis
                                     Veronica
                                             Veronica agrestis
                                             Veronica alpina
                                             Veronica americana
                                               Veronica americana var. crassula
                                             Veronica anagallis-aquatica
                                                   [Veronica X lackschewitzii]
                                                   [Veronica anagallis]
                                                   [Veronica catenata var. glandulosa]
                                                   [Veronica catenata]
                                                   [Veronica comosa var. glaberrima]
                                                   [Veronica comosa var. glandulosa]
                                                   [Veronica comosa]
                                                   [Veronica connata ssp. glaberrima]
                                                   [Veronica connata var. glaberrima]
                                                   [Veronica connata var. typica]
                                                   [Veronica connata]
                                                   [Veronica glandifera]
                                                   [Veronica grandiflora]
                                                   [Veronica micromeria]
                                                   [Veronica salina]
                                             Veronica arvensis
                                             Veronica austriaca
                                               Veronica austriaca ssp. teucrium
                                               Veronica austriaca ssp. vahlii
                                             Veronica bachofenii
                                             Veronica beccabunga
                                               Veronica beccabunga var. americana
                                             Veronica biloba
                                                   [Pocilla biloba]
                                             Veronica campylopoda
                                             Veronica chamaedrys
                                             Veronica ciliata
                                             Veronica copelandii
                                             Veronica crenatifolia
                                             Veronica crinita
                                             Veronica cusickii
                                             Veronica cymbalaria
                                             Veronica dillenii
                                             Veronica filiformis
                                             Veronica franciscana
                                             Veronica fruticans
                                             Veronica gentianoides
                                             Veronica glandulifera
                                             Veronica grandis
                                             Veronica hederifolia
                                             Veronica incana
                                             Veronica latifolia
                                             Veronica longifolia
                                             Veronica lysimachioides
                                             Veronica mexicana
                                             Veronica michauxii
                                             Veronica officinalis
                                               Veronica officinalis var. officinalis
                                               Veronica officinalis var. tournefortii
                                             Veronica opaca
                                             Veronica peregrina
                                               Veronica peregrina ssp. peregrina
                                               Veronica peregrina ssp. xalapensis
                                                     [Veronica peregrina var. xalapensis]
                                                     [Veronica sherwoodii]
                                                     [Veronica xalapensis]
                                               Veronica peregrina var. typica
                                             Veronica perfoliata
                                             Veronica persica
                                                   [Pocilla persica]
                                                   [Veronica buxbaumii]
                                                   [Veronica persica var. aschersoniana]
                                                   [Veronica persica var. corrensiana]
                                             Veronica plebia
                                             Veronica polita
                                                   [Pocilla polita]
                                                   [Veronica didyma]
                                             Veronica prostrata
                                             Veronica scutellata
                                               Veronica scutellata var. villosa
                                             Veronica serpyllifolia
                                               Veronica serpyllifolia ssp. humifusa
                                                     [Veronica humifusa]
                                                     [Veronica serpyllifolia var. borealis]
                                                     [Veronica serpyllifolia var. humifusa]
                                                     [Veronica tenella]
                                                     [Veronicastrum serpyllifolium ssp. humifusum]
                                               Veronica serpyllifolia ssp. serpyllifolia
                                               Veronica serpyllifolia var. neomexicana
                                               Veronica serpyllifolia var. nummularioides
                                             Veronica speciosa
                                             Veronica spicata
                                               Veronica spicata ssp. incana
                                               Veronica spicata ssp. spicata
                                             Veronica spuria
                                             Veronica stelleri
                                             Veronica teucrium
                                             Veronica tournefortii
                                             Veronica triphyllos
                                             Veronica undulata
                                             Veronica verna
                                             Veronica virginica
                                             Veronica wormskjoldii
                                                   [Veronica alpina var. alterniflora]
                                                   [Veronica alpina var. cascadensis]
                                                   [Veronica alpina var. geminiflora]
                                                   [Veronica alpina var. nutans]
                                                   [Veronica alpina var. terrae-novae]
                                                   [Veronica alpina var. unalaschcensis]
                                                   [Veronica nutans]
                                                   [Veronica stelleri var. glabrescens]
                                                   [Veronica wormskjoldii ssp. alterniflora]
                                               Veronica wormskjoldii var. stelleri
                                               Veronica wormskjoldii var. wormskjoldii
                                     Veronicastrum
                                             Veronicastrum serpyllifolium
                                             Veronicastrum virginicum
                                     Wulfenia
                                             Wulfenia bullii
                                             Wulfenia gymnocarpa
                                             Wulfenia plantaginea