Bidens bipinnata Linnaeus (Q2558)

taxon name

Bidens bipinnata

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taxon authority

Linnaeus

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taxon rank

species

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taxon status

accepted

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common name

bident à feuilles bipennées (French)

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bident bipenné (French)

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bident deux fois penné (French)

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Spanish needles (English)

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VasCan taxon numeric id

2929

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distribution

CA-ON

occurrence status

excluded

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publication

Canadian Museum of Nature (CAN), Gatineau, QC. Specimen.

CA-NB

establishment of distribution

occurrence status

present

introduced

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publication

FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York. http://www.efloras.org/volume_page.aspx?volume_id=1021&flora_id=1

CA-NB

N.B.

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CA-ON

Ont.

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US-AL

Ala.

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US-AZ

Ariz.

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US-AR

Ark.

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US-CT

Conn.

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US-DC

D.C.

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US-FL

Fla.

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US-GA

Ga.

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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-KY

Ky.

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US-LA

La.

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US-MD

Md.

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US-MS

Miss.

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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-NY

N.Y.

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US-NC

N.C.

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US-OH

Ohio

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US-OK

Okla.

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US-PA

Pa.

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US-RI

R.I.

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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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US-WV

W.Va.

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South America

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Europe

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Asia

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Pacific Islands

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parent taxon

Bidens Linnaeus

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taxon habit

herb

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GBIF taxon key

5389402

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Global Biodiversity Information Facility

IUCN Redlist Category

NE

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Global Biodiversity Information Facility

phenology

Flowering (Jun–)Aug–Sep(–Oct).

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taxon habitat

fields

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forests

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disturbed

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wettish sites

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elevation

10–1800 m

measurement range from

10 meter

measurement range to

1,800 meter

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special status

I

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F

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taxon description fragment

Leaves: petioles 20–50 mm;

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d0_s1

blades rounded-deltate to ovate or lanceolate overall, (20–) 30–70+ × (20–) 30–60+ mm, (1–) 2 (–3) -pinnatisect, ultimate lobes obovate or lanceolate, 15–45+ × 10–25+ mm, bases truncate to cuneate, ultimate margins entire, sometimes ciliolate, apices rounded to acute or attenuate, faces usually glabrous, sometimes hirtellous.

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d0_s2

Heads usually borne singly, sometimes in ± corymbiform arrays.

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d0_s3

Peduncles (10–) 20–50 (–100) mm.

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d0_s4

Calyculi of (7–) 8 (–10) linear bractlets 3–5 mm, ± appressed, margins ciliate, abaxial faces usually glabrous.

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d0_s5

Involucres ± campanulate, 5–7 × 3–4 (–5) mm.

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d0_s6

Phyllaries 8–12, lanceolate to linear, 4–6 mm.

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d0_s7

Ray-florets 0 or 3–5+;

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d0_s8

laminae yellowish or whitish, 1–2 (–3) mm.

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d0_s9

Disc-florets 10–20 (–30+);

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d0_s10

corollas yellowish to whitish, 2–3 mm.

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d0_s11

Cypselae redbrown, outer weakly obcompressed, 7–15 mm, inner ± 4-angled, linear to linear-fusiform, 12–18 mm, margins not ciliate, apices ± attenuate, faces 2-grooved, often tuberculate-hispidulous;

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d0_s12

pappi of (2–) 3–4, erect to divergent, retrorsely barbed awns 2–4 mm. 2n = 24, 72.

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