Difference between revisions of "Vernonia noveboracensis"
Fl. Bor.-Amer. 2: 95. 1803.
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|name=Serratula noveboracensis | |name=Serratula noveboracensis | ||
|authority=Linnaeus | |authority=Linnaeus | ||
| + | |publication_title=Sp. Pl. | ||
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|tribe=Asteraceae tribe Vernonieae | |tribe=Asteraceae tribe Vernonieae | ||
|genus=Vernonia | |genus=Vernonia | ||
Revision as of 19:36, 24 September 2019
Plants 8–12(–20) dm. Stems puberulent, glabrescent. Leaves mostly cauline; blades ± lanceolate, 9–15(–25+) cm × 15–45(–60+) mm, l/w = (3.3–)4–6+, abaxially scabrellous, tomentose, or pannose, resin-gland-dotted, adaxially scabrellous, often resin-gland-dotted. Heads in corymbiform to paniculiform arrays. Peduncles 2–35 mm. Involucres ± hemispheric, 6–10 × 7–10 mm. Phyllaries 35–60+ in 4–6+ series, sparsely tomentulose, glabrescent, margins ciliolate, the outer lanceolate to subulate, 1–3 mm, inner oblong, 7–9+ mm, tips subulate to filiform. Florets 30–45(–65). Cypselae 3.5–4+ mm; pappi fuscous to purplish, outer scales 20, 0.2–0.6+ mm, contrasting with 30–40+, 5–7+ mm inner bristles. 2n = 34.
Phenology: Flowering Aug–Oct.
Habitat: Abandoned fields, marshes, roadsides
Elevation: 10–600 m
Distribution
Ala., Conn., Del., D.C., Fla., Ga., Md., Mass., N.J., N.Y., N.C., Pa., R.I., S.C., Tenn., Va., W.Va.
Discussion
Selected References
None.