Conyza ramosissima

Cronquist

Bull. Torrey Bot. Club 70: 632. 1943.

Endemic
Basionym: Erigeron divaricatus Michaux Fl. Bor.-Amer. 2: 123. 1803 (as divaricatum),
Treatment appears in FNA Volume 20. Treatment on page 349. Mentioned on page 348.

Plants spreading, 5–25+ cm, branched throughout (stems usually ± strigose). Leaves: faces closely strigose; proximal blades narrowly spatulate to linear, 5–15+ × 0.5–2(–3+) mm; distal similar, smaller, narrower. Heads in loose, corymbiform arrays or borne ± singly. Involucres 3–4 mm. Phyllaries glabrous or glabrate; outer greenish to purplish, lanceolate, shorter, sparsely strigose; inner stramineous to purplish, linear-attenuate (more scarious). Receptacles 0.7–1 mm diam. in fruit. Pistillate florets 20–30; corollas ± equaling or surpassing styles, laminae 0.3–0.8 mm. Disc florets 3–8. Cypselae pale tan, 1–1.5 mm, faces sparsely strigillose or glabrous; pappi of 20–30, tawny to pinkish bristles 2–2.5 mm. 2n = 18.


Phenology: Flowering late spring–early fall.
Habitat: Disturbed sites, usually in heavy clay soils
Elevation: 100–800 m

Distribution

V20-803-distribution-map.gif

Ala., Ark., Ill., Ind., Iowa, Kans., La., Minn., Miss., Mo., Nebr., N.Mex., N.Dak., Ohio, Okla., Pa., S.Dak., Tex., Wis.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Conyza ramosissima"
John L. Strother +
Cronquist +
Erigeron divaricatus +
Ala. +, Ark. +, Ill. +, Ind. +, Iowa +, Kans. +, La. +, Minn. +, Miss. +, Mo. +, Nebr. +, N.Mex. +, N.Dak. +, Ohio +, Okla. +, Pa. +, S.Dak. +, Tex. +  and Wis. +
100–800 m +
Disturbed sites, usually in heavy clay soils +
Flowering late spring–early fall. +
Bull. Torrey Bot. Club +
Compositae +
Conyza ramosissima +
species +