Bidens trichosperma (Michaux) Britton (Q2568)

taxon name

Bidens trichosperma

1 reference

taxon authority

(Michaux) Britton

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taxon rank

species

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taxon status

accepted

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common name

bident trichosperme (French)

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crowned beggarticks (English)

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hairy-seed beggarticks (English)

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southern tickseed (English)

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tickseed sunflower (English)

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tall tickseed-sunflower (English)

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VasCan taxon numeric id

2939

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distribution

CA-ON

establishment of distribution

occurrence status

present

native

1 reference

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-QC

establishment of distribution

occurrence status

present

introduced

1 reference

publication

Marie-Victorin, Fr. 1995. Flore laurentienne. 3e éd. Mise à jour et annotée par L. Brouillet, S.G. Hay, I. Goulet, M. Blondeau, J. Cayouette et J. Labrecque. Gaétan Morin éditeur. 1093 pp.

Newfoundland, CA

occurrence status

excluded

1 reference

publication

Meades, S., S.G. Hay & L. Brouillet. 2000. Annotated Checklist of the Vascular Plants of Newfoundland and Labrador. Published in association with A Digital Flora of Newfoundland and Labrador Vascular Plants. http://www.digitalnaturalhistory.com/meades.htm (consulted 2009-09-02) http://www.digitalnaturalhistory.com/meades.htm

CA-ON

Ont.

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CA-QC

Que.

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US-AL

Ala.

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US-AR

Ark.

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US-CT

Conn.

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US-DE

Del.

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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-KY

Ky.

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US-MD

Md.

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US-MA

Mass.

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US-MI

Mich.

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US-MN

Minn.

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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-NY

N.Y.

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US-NC

N.C.

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US-OH

Ohio

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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-SD

S.Dak.

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US-TN

Tenn.

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US-VA

Va.

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US-WV

W.Va.

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US-WI

Wis.

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parent taxon

Bidens Linnaeus

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taxon habit

herb

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GBIF taxon key

5392088

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Global Biodiversity Information Facility

IUCN Redlist Category

LC

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Global Biodiversity Information Facility

phenology

Flowering Aug–Oct.

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taxon habitat

marshes

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estuaries

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elevation

0–300 m

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special status

E

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taxon description fragment

Leaves: petioles 5–20+ mm;

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d0_s1

blades ± deltate to ovate overall, 40–75 (–150) × 10–45 (–130) mm, usually laciniately 1–2-pinnatisect, ultimate lobes (3–) 5–7+, oblanceolate or lanceolate to linear, (5–) 10–30 (–80+) × (1–) 4–8 (–12+) mm, bases cuneate, ultimate margins incised, dentate, serrate, or entire, little, if at all, ciliate, apices acute to attenuate, faces glabrous or ± hirtellous to strigillose.

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d0_s2

Peduncles 20–150 mm.

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d0_s4

Calyculi of (6–) 8 (–11), ascending to spreading, spatulate to linear, sometimes ± foliaceous bractlets or bracts 3–10 (–18) mm, margins sometimes ciliate, abaxial faces glabrous.

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d0_s5

Involucres hemispheric or broader, 4–6 (–8) × 6–12 mm.

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d0_s6

Phyllaries 6–8 (–10), oblong, 3–8 mm.

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d0_s7

Ray-florets (7–) 8–9;

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d0_s8

laminae golden yellow, 10–30 mm.

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d0_s9

Disc-florets 40–60 (–80+);

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d0_s10

corollas yellow, 3–5 mm.

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d0_s11

Cypselae blackish or brown, flattened, narrowly cuneate, outer 3–6 mm, inner 5–9 mm (lengths mostly 2.5–4 times widths), margins antrorsely barbed or ciliate, apices ± truncate, faces obscurely 1-nerved, sometimes tuberculate, glabrous or sparsely hispidulous;

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d0_s12

pappi of 2 erect, ± patently barbed awns or scales (0.4–) 1–2.5 (–4) mm.

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