Difference between revisions of "Verbesina alternifolia"
Bull. Torrey Bot. Club 20: 485. 1893.
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|publication year=1893 | |publication year=1893 | ||
|special status=Endemic | |special status=Endemic | ||
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|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ecliptinae | ||
Latest revision as of 20:10, 5 November 2020
Plants (30–)100–200+ cm (perennating bases ± erect or horizontal rhizomes, internodes winged, at least proximal). Leaves all or mostly alternate (proximal sometimes opposite); blades lance-elliptic or lanceolate to lance-linear, 10–25+ × 2–8+ cm, bases narrowly cuneate, margins coarsely toothed to subentire, apices attenuate, faces scabrellous. Heads (3–)8–25(–50+) in corymbiform to paniculiform arrays. Involucres ± saucerlike, 10–12+ mm diam. Phyllaries 8–12+ in 1(–2) series, ± spreading to reflexed, spatulate or lance-linear to linear, 3–8+ mm. Ray florets (2–)6–8+; laminae 15–25+ mm. Disc florets 40–60+; corollas yellow. Cypselae dark brown to black, oblanceolate to ± orbiculate, 4.5–5 mm, faces sparsely hirtellous to glabrate; pappi 1.5–2 mm. 2n = 68.
Phenology: Flowering Aug–Oct.
Habitat: Alluvial flats, along streams, woodlands
Elevation: 10–600 m
Distribution
Ont., Ala., Ark., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Md., Mich., Miss., Mo., Nebr., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Va., W.Va., Wis.
Discussion
Verbesina alternifolia may be no longer present in Delaware.
Selected References
None.