View source for Bidens aristosa

{{Treatment/ID
|accepted_name=Bidens aristosa
|accepted_authority=(Michaux) Britton
|publications={{Treatment/Publication
|title=Bull Torrey Bot. Club
|place=20: 281. 1893
|year=1893
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Coreopsis aristosa
|authority=Michaux
|rank=species
|publication_title=Fl. Bor.-Amer.
|publication_place=2: 140. 1803
}}
|synonyms={{Treatment/ID/Synonym
|name=Bidens aristosa var. fritcheyi
|authority=Fernald
|rank=variety
}} {{Treatment/ID/Synonym
|name=Bidens aristosa var. mutica
|authority=(A. Gray) Gattinger ex Fernald
|rank=variety
}}
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Coreopsidinae;Bidens;Bidens aristosa
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Coreopsidinae]]</div><div class="higher-taxon"><small>genus</small>[[Bidens]]</div><div class="higher-taxon"><small>species</small>[[Bidens aristosa]]</div></div>
|volume=Volume 21
|mention_page=page 185, 206, 207
|treatment_page=page 214
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> (15–)30–60(–150) cm. <b>Leaves</b>: petioles 10–30 mm; blades lanceolate to lance-linear overall, 30–80(–150) × 10–30(–50) mm, usually laciniately pinnatisect, primary lobes 3–7+, 15–60+ × 2–20 mm, bases cuneate, ultimate margins laciniate to serrate, ciliate, apices acuminate, faces glabrous or sparsely scabrellous. <b>Heads</b> in ± corymbiform arrays. <b>Peduncles</b> (10–)30–80+ mm. <b>Calyculi</b> of 8–12(–16) usually spreading to reflexed, linear, seldom foliaceous bractlets (4–)5–7(–12) mm, margins entire, ciliate, abaxial faces glabrous or ± scabrellous. <b>Involucres</b> ± hemispheric or broader, 6–8(–12) × 10–15 mm. <b>Phyllaries</b> 7–8(–13), lance-ovate to lance-linear, 6–8(–12) mm. <b>Ray</b> florets (5–)8–10+; laminae yellow, 10–25 mm. <b>Disc</b> florets (12–)20–40+; corollas yellowish, 2–3+ mm. <b>Cypselae</b> red-brown to blackish, ± flattened (unequally 3–4-angled), broadly cuneate, outer (4–)5–6 mm, inner 5–7 mm (lengths mostly 1.5–2.5 times widths), margins (± corky-winged) patently to antrorsely barbed, apices truncate to concave, faces weakly striate, sometimes tuberculate, glabrous or sparsely strigillose; pappi 0, or of 2(–4) spreading to divergent, antrorsely or retrorsely barbed awns (0.5–)2–4(–6) mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Oct(–Nov).
|habitat=Marshes, meadows, pine forests, disturbed sites
|elevation=0–300 m
|distribution=Ont.;Ala.;Ark.;D.C.;Ill.;Ind.;Ky.;La.;Md.;Mich.;Minn.;Mo.;N.C.;S.C.;Tenn.;Tex.;Va.
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Bidens aristosa
|authority=(Michaux) Britton
|rank=species
|parent rank=genus
|synonyms=Bidens aristosa var. fritcheyi;Bidens aristosa var. mutica
|basionyms=Coreopsis aristosa
|family=Asteraceae
|phenology=Flowering Aug–Oct(–Nov).
|habitat=Marshes, meadows, pine forests, disturbed sites
|elevation=0–300 m
|distribution=Ont.;Ala.;Ark.;D.C.;Ill.;Ind.;Ky.;La.;Md.;Mich.;Minn.;Mo.;N.C.;S.C.;Tenn.;Tex.;Va.
|reference=None
|publication title=Bull Torrey Bot. Club
|publication year=1893
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V21_520.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Coreopsidinae
|genus=Bidens
|species=Bidens aristosa
}}<!--

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