Verbesina occidentalis

(Linnaeus) Walter

Fl. Carol., 213. 1788.

IllustratedEndemic
Basionym: Siegesbeckia occidentalis Linnaeus Sp. Pl. 2: 900. 1753
Treatment appears in FNA Volume 21. Treatment on page 109. Mentioned on page 107.

Plants 80–200+ cm (perennating bases ± erect, internodes winged). Leaves all or mostly opposite (distal sometimes alternate); blades ± ovate or lance-deltate to lanceolate, 6–12 (–16+) × 3–6 (–10+) cm, bases ± cuneate, margins coarsely toothed to subentire, apices usually acute to attenuate, sometimes rounded, faces scabrellous. Heads 20–100+ in corymbiform-paniculiform arrays. Involucres campanulate to turbinate, 3–5+ mm diam. Phyllaries 8–12+ in 2 series, ± erect, spatulate to oblanceolate, 3–7+ mm. Ray-florets (0–) 1–3 (–5); laminae 10–15 (–20+) mm. Disc-florets 8–15+; corollas yellow. Cypselae dark-brown to black, oblanceolate, 5 mm, faces strigose; pappi 3–4 mm. 2n = 34.


Phenology: Flowering Aug–Oct.
Habitat: Bottomlands, margins of thickets, waste places
Elevation: 10–300 m

Distribution

V21-259-distribution-map.gif

Ala., Del., D.C., Fla., Ga., Ill., Ky., Md., Miss., Mo., N.C., Ohio, Okla., S.C., Tenn., Tex., Va., W.Va.

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Verbesina occidentalis"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
rounded;usually acute;attenuate +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
corymbiform-paniculiform +
indeterminate +  and determinate +
John L. Strother +
(Linnaeus) Walter +
bristlelike +
subulate +
cuneate +
Siegesbeckia occidentalis +
compound +  and simple +
12 cm120 mm <br />0.12 m <br /> (16 cm160 mm <br />0.16 m <br />) +
6 cm60 mm <br />0.06 m <br /> (10 cm100 mm <br />0.1 m <br />) +
6 cm60 mm <br />0.06 m <br /> (12 cm120 mm <br />0.12 m <br />) +
less ovate or lance-deltate;lanceolate +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
dark-brown +  and black +
hairy +  and glabrous +
oblanceolate +
fertile +  and bisexual +
fertile +  and bisexual +
Ala. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ky. +, Md. +, Miss. +, Mo. +, N.C. +, Ohio +, Okla. +, S.C. +, Tenn. +, Tex. +, Va. +  and W.Va. +
10–300 m +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Bottomlands, margins of thickets, waste places +
discoid +  and radiate +
in corymbiform , dichasiiform or paniculiform , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
campanulate;turbinate +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
less deltate +  and lance-deltate +
dentate to pinnatifid or palmatifid +  and entire +
coarsely toothed +  and subentire +
2-carpellate +
persistent +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering Aug–Oct. +
8 +  and 12 +
unequal +  and subequal +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Fl. Carol., +
neuter +, styliferous +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
flat;convex or more or less conic +
subulate +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Verbesina occidentalis +
Verbesina +
species +
campanulate +
cylindric +
shorter to longer than campanulate +
toothed +  and subentire +
perennial +  and annual +
7 cm70 mm <br />0.07 m <br /> (15 cm150 mm <br />0.15 m <br />) +
200 cm2,000 mm <br />2 m <br /> (400 cm4,000 mm <br />4 m <br />) +