Bidens leptocephala Sherff

Fewflower beggarticks (en)

Species

Angiosperms > Asterales > Asteraceae > Bidens

Characteristics

Annuals, 10–25(–50) cm. Leaves: petioles 5–40 mm (usually hispido-ciliate); blades rounded-deltate overall, 15–50+ × 12–40+ mm, 1–2-pinnatisect, ultimate lobes ovate or lanceolate to linear, 3–25+ × (1–)2–3(–15) mm, bases ± cuneate, ultimate margins entire, ciliolate, apices acute to attenuate, faces glabrous or hirtellous. Heads usually borne singly, sometimes in open, ± corymbiform arrays. Peduncles (10–)30–80+ mm. Calyculi of 3–4(–6) ± appressed, subulate to filiform bractlets 1–3 mm, margins ciliolate, abaxial faces usually glabrous. Involucres ± cylindric, 2–3(–4+) × 1.5–2+ mm. Phyllaries 4–5(–7), oblong to lanceolate, (2–)3–4+ mm. Ray florets 0 or 2–3; laminae yellowish or whitish, 1–3 mm. Disc florets 5–13; corollas yellowish to whitish, 1.5–2 mm. Cypselae: outer red-brown, flat or unequally 4-angled, linear, 6–8 mm, margins not ciliate, apices somewhat attenuate, faces obscurely 2-grooved, antrorsely hispidulous toward tips; inner similar, blackish (sometimes with pale tips), ± equally 4-angled, linear-fusiform, 9–14 mm, margins not ciliate, apices attenuate, faces 2-grooved, antrorsely hispidulous (at least distally); pappi of 2(–3), erect, retrorsely barbed awns 1–3 mm.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.25
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 5-7
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-11

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 -

Distribution

Bidens leptocephala world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:32499-2
WFO ID wfo-0000073749
COL ID LSC3
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Bidens leptocephala Bidens leptocephala var. leptocephala