Difference between revisions of "Bidens polylepis"
Proc. Biol. Soc. Wash. 35: 78. 1922.
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|year=1922 | |year=1922 | ||
}} | }} | ||
− | |basionyms={{Treatment/ID/ | + | |special_status={{Treatment/ID/Special_status |
+ | |code=E | ||
+ | |label=Endemic | ||
+ | }} | ||
+ | |basionyms={{Treatment/ID/Basionym | ||
|name=Coreopsis involucrata | |name=Coreopsis involucrata | ||
|authority=Nuttall | |authority=Nuttall | ||
+ | |rank=species | ||
+ | |publication_title=J. Acad. Nat. Sci. Philadelphia | ||
+ | |publication_place=7: 74. 1834, | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=B. polylepis var. retrorsa | |name=B. polylepis var. retrorsa | ||
|authority=Sherff | |authority=Sherff | ||
+ | |rank=variety | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Coreopsidinae;Bidens;Bidens polylepis | |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Coreopsidinae;Bidens;Bidens polylepis | ||
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name=Bidens polylepis | name=Bidens polylepis | ||
− | |||
|authority=S. F. Blake | |authority=S. F. Blake | ||
|rank=species | |rank=species | ||
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|publication title=Proc. Biol. Soc. Wash. | |publication title=Proc. Biol. Soc. Wash. | ||
|publication year=1922 | |publication year=1922 | ||
− | |special status= | + | |special status=Endemic |
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_521.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae |
Latest revision as of 21:12, 5 November 2020
Annuals (biennials), 30–100+ cm. Leaves: petioles 5–30 mm; blades ± deltate to ovate overall, 40–80(–150+) × 25–50(–80+) mm, usually laciniately 1-pinnatisect, ultimate lobes 3(–7), lanceolate to linear, 25–60(–120+) × (3–)6–20(–25) mm, bases cuneate, ultimate margins incised, dentate, or serrate, ciliate, apices acute to attenuate, faces glabrous or hirtellous to scabrellous. Heads borne singly or in 2s or 3s or in open, ± corymbiform arrays. Peduncles 10–20(–50) mm. Calyculi of 12–21+ spreading to reflexed, linear, seldom foliaceous bractlets (6–)8–12(–20+) mm, margins coarsely ciliate, abaxial faces glabrous or scabrellous. Involucres turbinate to hemispheric, 4–5 × 6–10 mm. Phyllaries 6–8+, lance-ovate to lanceolate, 4–7 mm. Ray florets 8; laminae golden yellow, 10–25+ mm. Disc florets (40–)60–100+; corollas yellow, 2.5–3 mm. Cypselae blackish or brown to yellowish, ± flattened, obovate or oblanceolate to cuneate, outer 5–7 mm, inner 7–8 mm (lengths mostly 1.5–2.5 widths), margins (± corky-winged) antrorsely barbed or ciliate, apices ± truncate, faces glabrous or strigillose, sometimes tuberculate; pappi 0, or of 2 divergent, retrorsely barbed awns or ± deltate scales 0.1–0.5(–1.5) mm. 2n = 24.
Phenology: Flowering Aug–Oct.
Habitat: Marshes, bogs, flood plains, disturbed sites
Elevation: 10–1500 m
Distribution
Ont., Ala., Ark., Colo., Ill., Ind., Iowa, Kans., La., Md., Mich., Mo., Nebr., N.J., N.Mex., N.C., Okla., Pa., S.C., Tenn., Tex., Va.
Discussion
Selected References
None.