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.

"narrower" is not a number.

... more about "Conyza ramosissima"
strigose +, hispidulous +, hirsutulous +  and glabrous +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
Cronquist +
decurrent +
Erigeron divaricatus +
compound +  and simple +
mostly lanceolate;oblanceolate or linear +
rugulose +  and muricate +
barbellulate +  and barbellate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not 2-lipped +  and actinomorphic +
yellowish +, ochroleucous +, white +  and purplish +
20 +  and 150 +
surpassing styles +  and equaling +
beaked +, 2-ribbed +  and 5-ribbed +
oblong +  and elliptic +
fertile +  and bisexual +
fertile +  and bisexual +
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 +
glabrous +, strigillose +  and strigose +
winged +  and beaked +
dispersed +
Disturbed sites, usually in heavy clay soils +
corymbiform +, paniculiform +, disciform +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
stramineous +  and purplish +
linear-attenuate +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
spreading;erect +
deltate +
dentate to pinnatifid +  and entire +
entire +, toothed +  and lobed +
greenish +  and purplish +
2-carpellate +
tawny +  and pinkish +
persistent +
Flowering late spring–early fall. +
glabrate +  and glabrous +
lanceolate +  and linear +
unequal +  and larger +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
narrowly spatulate +  and linear +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Bull. Torrey Bot. Club +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Conyza ramosissima +
species +
120 cm1,200 mm <br />1.2 m <br /> (350 cm3,500 mm <br />3.5 m <br />) +
10 cm100 mm <br />0.1 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +