Contact Us
Log in
Sandbox Portal
Use for testing only
Home
Search Collections
Map Search
Checklists
Image Search
Data Use
About Symbiota
Sitemap
Help
Symphyotrichum pratense
Symphyotrichum pratense
(Raf.) G.L. Nesom
Family:
Asteraceae
Flora of North America
Resources
Luc Brouillet, John C. Semple, Geraldine A. Allen, Kenton L. Chambers, Scott D. Sundberg+ in Flora of North America (vol. 20)
Perennials,
40-60 cm, cespitose, eglandular; with cormoid, woody caudices.
Stems
5-10+, ascending to erect (brown), glabrous or sparsely strigose distally.
Leaves
(grayish green) firm, margins entire; basal withering by flowering, sessile, blades (1-3 nerved) elliptic-lanceolate, 20-40 × 10-20 mm, bases attenuate, margins usually entire, rarely remotely serrate, piloso-ciliate, apices acute to obtuse, faces piloso-scabrous; proximal cauline withering by flowering, sessile, blades oblanceolate, 20-30 × 5-13 mm, reduced distally, bases rounded, subclasping, margins entire, scrabrous, apices acute to obtuse, cuspidate-mucronate, faces glabrous or moderately strigose or ± scabrous; distal sessile, blades oblong-lanceolate, 15-25 × 4-6 mm, bases cuneate, margins entire, apices acute, white-spinulose, faces glabrate to moderately strigose or ± scabrous.
Heads
in open, paniculiform arrays (1-5+ per branch).
Peduncles
glabrous or sparsely strigose, bracts oblong-lanceolate, grading into phyllaries.
Involucres
narrowly campanulate, 6-11 mm.
Phyllaries
in 3-4 series, outer broadly lanceolate, flaring distally , inner linear-lanceolate, subequal, outer foliceous, bases (tan) ± indurate, margins long-piloso-ciliate, green zones foliaceous (outer), apices sometimes purplish, acute (outer) to acuminate (inner), faces glabrous or sparsely short-pilose.
Ray florets
13-15(-36); corollas rose-purple, laminae 8-13 × 1-2 mm.
Disc florets
16-34(-48); corollas pink turning purple, 4.5-7.5 mm, tubes shorter than narrowly funnelform throats (sometimes thinly puberulent), lobes triangular, 8-13 mm.
Cypselae
tan to light brown, obovoid, not compressed, ± 3 mm, 5-8-nerved, faces glabrous;
pappi
tan, 3.5-6 mm.
2
n
= 10, 20. Flowering Oct-Nov. Prairies, oak woodlands, pine-oak scrub, fields, roadsides; 0-500 m; Ala., Ark., Fla., Ga., Ky., La., Miss., Tenn., Tex., Va.
Open Interactive Map
Click to Display
7 Total Images