Bidens vulgata Greene

Big devils beggartick (en), Bident vulgaire (fr)

Species

Angiosperms > Asterales > Asteraceae > Bidens

Characteristics

Annuals, (15–)30–50(–150) cm. Leaves: petioles 10–50 mm; blades ± deltate to ovate overall, 50–100(–150+) × (15–)30–80(–120+) mm, usually laciniately 1-pinnatisect or 3–5-foliolate, primary lobes or leaflets ± lanceolate, 20–80(–120) × 10–25(–40+) mm, blades rarely 2–3-pinnatisect, bases cuneate, ultimate margins dentate to serrate, little, if at all, ciliate, apices acute to attenuate, faces glabrous or ± hispidulous. Heads borne singly or in 2s or 3s or in open, corymbiform arrays, erect. Peduncles (10–)40–150+ mm. Calyculi of 10–16(–21) ascending to spreading, spatulate to linear, seldom foliaceous bractlets or bracts 10–20(–40) mm, margins usually hispid-ciliate, abaxial faces ± hispidulous. Involucres hemispheric or broader, 5–6 × 8–10 mm. Phyllaries 10–12, ovate to lanceolate, 6–9 mm. Ray florets 0 or 3–5+; laminae pale yellow, 2.5–3.5 mm. Disc florets 40–60(–150+); corollas yellow, 2.5–3.5 mm. Cypselae purplish, brown, olive, or stramineous, ± flattened, obovate to cuneate, outer 6–10 mm, inner 8–12 mm, margins (sometime ± winged) proximally antrorsely, distally retrorsely barbed, apices ± truncate, faces obscurely 1-nerved, sometimes tuberculate, glabrous or sparsely strigillose; pappi of 2 erect to divergent, retrorsely barbed awns 3–4(–7) mm. 2n = 24, 48.
More
Much like no. 9 [Bidens frondosa L.], averaging a little more robust and larger-headed, the herbage glabrous to densely villous-puberulent; outer invol bracts in well developed heads 10–16(–21), typically 13, averaging a little more leafy; disk yellow; anthers mostly included; achenes to 12 mm, dark as in no. 9, or more commonly olivaceous or somewhat yellowish; 2n=24, 48. Wet to dryish waste places; widespread in n. U.S. and adj. Can., s. to N.C., Mo., and Calif. Aug.–Oct. (B. puberula)
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination
Spread epizoochory
Mature width (meter) -
Mature height (meter) 0.3 - 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 7-9
Soil humidity 5-7
Soil texture 1-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Bidens vulgata leaf picture by Franco Colnago (cc-by-sa)
Bidens vulgata leaf picture by Charly Chauveau (cc-by-sa)
Bidens vulgata leaf picture by isabelle guillemain (cc-by-sa)

Flower

Bidens vulgata flower picture by Kelsey C. (cc-by-sa)

Fruit

Bidens vulgata fruit picture by Franco Colnago (cc-by-sa)

Distribution

Bidens vulgata world distribution map, present in Belgium, Bulgaria, Canada, Germany, France, United Kingdom of Great Britain and Northern Ireland, Italy, Norway, Romania, Serbia, Slovenia, and United States of America

Conservation status

Bidens vulgata threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:309058-2
WFO ID wfo-0000128988
COL ID LSMC
BDTFX ID 9725
INPN ID 85989
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Bidens vulgata f. puberula Bidens puberula Bidens puberula Bidens vulgata f. vulgata Bidens vulgata var. puberula Bidens vulgata var. schizantha Bidens frondosa var. puberula Bidens vulgata var. dissectior Bidens vulgata