Verbesina longifolia

(A. Gray) A. Gray
Proc. Amer. Acad. Arts 19: 12. 1883.
Basionym: Actinomeris longifolia A. Gray Smithsonian Contr. Knowl. 5(6): 89. 1853
Treatment appears in FNA Volume 21. Treatment on page 110. Mentioned on page 107.

Plants 60–150+ cm (perennating bases ± erect, internodes not winged). Leaves all or mostly opposite (distal sometimes alternate); blades ± lance-linear (lengths 10–15 times widths), 9–12(–20+) × 0.6–1.2(–1.5+) cm, bases rounded, margins obscurely toothed to subentire, apices ± attenuate, faces ± scabrellous. Heads borne singly or 3–5+ in loose, corymbiform arrays. Involucres ± hemispheric to saucerlike, 11–15+ mm diam. Phyllaries 18–24+ in 2–3 series, ± erect to spreading, linear to lance-linear, 5–15+ mm. Ray florets 12–13; laminae 15–25+ mm. Disc florets 60–100+; corollas yellow. Cypselae dark brown, oblanceolate to elliptic, 7 mm, faces glabrous; pappi 0–0.5 mm. 2n = 34.


Phenology: Flowering (Jul–)Sep–Oct.
Habitat: Rocky slopes
Elevation: 1500–2400 m

Distribution

V21-264-distribution-map.gif

Ariz., N.Mex., Mexico (Chihuahua, Durango).

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Verbesina longifolia"
John L. Strother +
(A. Gray) A. Gray +
Actinomeris longifolia +
Ariz. +, N.Mex. +, Mexico (Chihuahua +  and Durango). +
1500–2400 m +
Rocky slopes +
Flowering (Jul–)Sep–Oct. +
Proc. Amer. Acad. Arts +
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 longifolia +
Verbesina +
species +