Bidens polylepis S. F. Blake (Q2567)

taxon name

Bidens polylepis

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taxon authority

S.F. Blake

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taxon rank

species

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taxon status

accepted

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common name

bident à écailles nombreuses (French)

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awnless beggarticks (English)

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long-bracted beggarticks (English)

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Ozark tickseed-sunflower (English)

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long-bracted tickseed-sunflower (English)

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VasCan taxon numeric id

2938

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distribution

CA-ON

establishment of distribution

occurrence status

irregular

introduced

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publication

Newmaster, S.G. & S. Ragupathy. 2005. Flora Ontario - Integrated Botanical Information System (FOIBIS), Phase I. University of Guelph, Canada. http://www.uoguelph.ca/foibis http://www.uoguelph.ca/foibis/

CA-ON

Ont.

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US-AL

Ala.

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US-AR

Ark.

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US-CO

Colo.

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US-IL

Ill.

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US-IN

Ind.

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US-IA

Iowa

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US-KS

Kans.

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US-LA

La.

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US-MD

Md.

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US-MI

Mich.

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US-MO

Mo.

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US-NE

Nebr.

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US-NJ

N.J.

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US-NM

N.Mex.

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US-NC

N.C.

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US-OK

Okla.

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US-PA

Pa.

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US-SC

S.C.

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US-TN

Tenn.

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US-TX

Tex.

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US-VA

Va.

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parent taxon

Bidens Linnaeus

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taxon habit

herb

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GBIF taxon key

5391933

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering Aug–Oct.

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taxon habitat

marshes

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bogs

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flood plains

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disturbed sites

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elevation

10–1500 m

measurement range from

10 meter

measurement range to

1,500 meter

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special status

E

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taxon description fragment

Leaves: petioles 5–30 mm;

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d0_s1

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.

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d0_s2

Heads borne singly or in 2s or 3s or in open, ± corymbiform arrays.

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d0_s3

Peduncles 10–20 (–50) mm.

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d0_s4

Calyculi of 12–21+ spreading to reflexed, linear, seldom foliaceous bractlets (6–) 8–12 (–20+) mm, margins coarsely ciliate, abaxial faces glabrous or scabrellous.

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d0_s5

Involucres turbinate to hemispheric, 4–5 × 6–10 mm.

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d0_s6

Phyllaries 6–8+, lanceovate to lanceolate, 4–7 mm.

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d0_s7

Ray-florets 8;

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d0_s8

laminae golden yellow, 10–25+ mm.

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d0_s9

Disc-florets (40–) 60–100+;

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d0_s10

corollas yellow, 2.5–3 mm.

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d0_s11

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;

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d0_s12

pappi 0, or of 2 divergent, retrorsely barbed awns or ± deltate scales 0.1–0.5 (–1.5) mm.

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