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Vaccaria
Family:
Caryophyllaceae
Steve Hurst
Flora of North America
Resources
John W. Thieret, Richard K. Rabeler in Flora of North America (vol. 5)
Herbs,
annual.
Taproots
stout.
Stems
simple proximally, branched distally, terete.
Leaves
opposite, somewhat clasping or connate proximally into sheath, petiolate (basal) or sessile (cauline); blade 1-veined, lanceolate to oblong- or ovate-lanceolate, apex acute to obtuse.
Inflorescences
terminal, lax to erect, open, often flat-topped cymes; bracts paired, foliaceous; involucel bracteoles absent.
Pedicels
erect.
Flowers:
sepals connate proximally into tube, 9-17 cm, tube whitish green, 5-veined, cylindric to ovoid, 5-angled or winged, especially in fruit, commissures between sepals absent; lobes green, 1-veined, obovate to broadly triangular, shorter than tube, margins green or reddish, scarious, apex acute or acuminate; petals 5, pink to purplish, clawed, auricles absent, coronal appendages absent, blade apex entire or sometimes briefly 2-fid; nectaries at filament bases; stamens 10, adnate to petals; filaments distinct; staminodes absent; ovary 1-locular or sometimes 2-locular proximally; styles 2(-3), filiform, 10-12 mm, glabrous proximally; stigmas 2(-3), linear along adaxial surface of styles, papillate (30×).
Capsules
oblong to subglobose, exocarp opening by 4(-6) slightly spreading teeth, endocarp opening irregularly; carpophore present.
Seeds
ca. 10, black, subglobose, laterally compressed, papillose, marginal wing absent, appendage absent; embryo peripheral, curved.
x
= 15.
Species within checklist:
Preliminary Checklist for the Arkansas Valley
Vaccaria hispanica