Difference between revisions of "Bidens mitis"
Bot. Gaz. 81: 43. 1926.
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
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|publication year=1926 | |publication year=1926 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_519.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | ||
Revision as of 22:00, 27 May 2020
Annuals (sometimes persisting), (10–)30–100+ cm. Leaves: petioles 5–20(–30+) mm; blades ± deltate to ovate or lanceolate overall, 30–100 × 10–50+ mm, usually laciniately 1-pinnatisect, ultimate lobes 3(–7), ovate or lanceolate to linear, (5–)25–60(–70+) × (1–)5–10(–12+) mm, bases cuneate, ultimate margins serrate or entire, often ciliolate, apices acute to attenuate, faces glabrous or hirtellous. Heads usually in open, ± corymbiform arrays. Peduncles 20–120 mm. Calyculi of 7–10 spreading, spatulate to linear, seldom foliaceous (± fleshy) bractlets 5–10 mm, margins usually ciliate, abaxial faces glabrous or hirtellous. Involucres hemispheric or broader, 5–6 × 5–8 mm. Phyllaries (6–)8+, lance-ovate to lanceolate, 4–5 mm. Ray florets 8–13; laminae golden yellow, 12–25+ mm. Disc florets 25–50+; corollas yellowish, 2.5–3 mm. Cypselae blackish or brown, flattened or unequally (3–)4-angled, broadly cuneate, outer 2.5–4, inner 3.5–5 mm (lengths mostly 1.5–2.5 times widths), margins not barbed or ciliate, apices ± truncate, faces sometimes obscurely 1-nerved, sometimes tuberculate, glabrous or hirtellous; pappi 0, or of 2 erect, antrorsely barbed awns or ± deltate scales 0.5(–1) mm. 2n = 24.
Phenology: Flowering Sep–Nov.
Habitat: Marshes, borders of estuaries
Elevation: 0–100(–300) m
Distribution
Ala., Ark., Del., Fla., Ga., La., Md., Miss., Mo., N.J., N.C., S.C., Tenn., Tex., Va.
Discussion
Selected References
None.