Difference between revisions of "Vernonia gigantea"
Rep. (Annual) Arkansas Geol. Surv. 4: 189. 1891.
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|name=Vernonia altissima | |name=Vernonia altissima | ||
|authority=Nuttall | |authority=Nuttall | ||
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|name=Vernonia altissima var. taeniotricha | |name=Vernonia altissima var. taeniotricha | ||
|authority=S. F. Blake | |authority=S. F. Blake | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Vernonia gigantea subsp. ovalifolia | |name=Vernonia gigantea subsp. ovalifolia | ||
|authority=(Torrey & A. Gray) Urbatsch | |authority=(Torrey & A. Gray) Urbatsch | ||
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|name=Vernonia ovalifolia | |name=Vernonia ovalifolia | ||
|authority=unknown | |authority=unknown | ||
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|publication year=1891 | |publication year=1891 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V19_265.xml |
|tribe=Asteraceae tribe Vernonieae | |tribe=Asteraceae tribe Vernonieae | ||
|genus=Vernonia | |genus=Vernonia | ||
Revision as of 15:10, 18 September 2019
Plants 8–20(–30+) dm. Stems puberulent, glabrescent. Leaves mostly cauline; blades ± lanceolate, 12–25+ cm × 20–60+ mm, l/w = (3.5–)4–7+, abaxially scabrellous (hairs awl-shaped), sometimes glabrescent, not or sparsely resin-gland-dotted, adaxially strigillose, glabrescent, not resin-gland-dotted. Heads in corymbiform-scorpioid arrays. Peduncles 1–12(–20+) mm. Involucres broadly campanulate to hemispheric, 4–5+ × 4–5 mm. Phyllaries 30–40+ in 4–5 series, glabrate, margins ciliolate, the outer lance-ovate, 1–2 mm, inner oblong, 3.5–5 mm, tips acute or rounded-apiculate. Florets (9–)18–24(–30). Cypselae 2.5–3.5 mm; pappi usually purplish, sometimes stramineous, outer scales 20–25, 0.5–1 mm, contrasting with 35–40+, 4.5–6+ mm inner bristles. 2n = 34.
Phenology: Flowering Jun–Sep.
Habitat: Flood plains
Elevation: 10–300 m
Distribution
Ont., Ala., Ark., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Mich., Miss., Mo., Nebr., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va.
Discussion
Selected References
None.