Difference between revisions of "Vernonia angustifolia"
Fl. Bor.-Amer. 2: 94. 1803.
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|name=Vernonia angustifolia subsp. mohrii | |name=Vernonia angustifolia subsp. mohrii | ||
|authority=(S. B. Jones) S. B. Jones & W. Z. Faust | |authority=(S. B. Jones) S. B. Jones & W. Z. Faust | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Vernonia angustifolia subsp. scaberrima | |name=Vernonia angustifolia subsp. scaberrima | ||
|authority=(Nuttall) S. B. Jones & W. Z. Faust | |authority=(Nuttall) S. B. Jones & W. Z. Faust | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Vernonia angustifolia var. scaberrima | |name=Vernonia angustifolia var. scaberrima | ||
|authority=(Nuttall) A. Gray | |authority=(Nuttall) A. Gray | ||
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|name=Vernonia scaberrima | |name=Vernonia scaberrima | ||
|authority=unknown | |authority=unknown | ||
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|publication year=1803 | |publication year=1803 | ||
|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_253.xml |
|tribe=Asteraceae tribe Vernonieae | |tribe=Asteraceae tribe Vernonieae | ||
|genus=Vernonia | |genus=Vernonia | ||
Revision as of 15:10, 18 September 2019
Plants 5–10+ dm. Stems sparsely appressed-puberulent, glabrescent. Leaves mostly cauline; blades (mid stem) lance-linear to filiform, 5–12 cm × 2–4(–8+) mm, l/w = (8–)12–30(–60+), abaxially glabrous but for scattered hairs on midribs or scabrellous (hairs awl-shaped), resin-gland-dotted or not, adaxially scabrellous. Heads in ± corymbiform to paniculiform arrays. Peduncles 8–25 mm. Involucres ± campanulate to obconic, 5–7(–10) × 4–6(–9) mm. Phyllaries 22–45+ in 5–6 series, sparsely scabrellous, glabrescent, margins ciliolate, the outer lanceolate to subulate, 1.5–3 mm, inner lance-ovate to lanceolate, 5–9+ mm, tips acuminate to subulate. Florets 12–20(–30). Cypselae 2.5–3 mm; pappi stramineous to purplish, outer scales 25–30, 0.5–1.2+ mm, contrasting with 35–40+, 5.5–6+ mm inner bristles. 2n = 34.
Phenology: Flowering Jun–Aug.
Habitat: Pine barrens, oak woodlands
Elevation: 10–50 m
Distribution
Ala., Fla., Ga., La., Miss., N.C., S.C.
Discussion
Selected References
None.