Bidens triplinervia Kunth

Bident à trois nervures au sens large (fr)

Species

Angiosperms > Asterales > Asteraceae > Bidens

Characteristics

Sprawling or ascending perennial herb, to 40 cm tall, sometimes much branched below; stems glabrous or pilose in lines, sometimes rooting at the lower nodes, the internodes short or long. Leaves opposite, to 4 cm long, deeply lobed, sometimes trifoliolate or bi-compound, the sinuses narrow, the lobes 2-4 on each side, apically obtuse or acute, mucronulate, the basal half entire, acute; petiole short or to 7 mm long, basally ciliate. Inflorescence of 1-3 heads inserted between reduced, foliaceous bracts or branching from a common peduncle; peduncle slender, to 20 cm long, gradually narrowing upwards, sometimes with one or two bracteoles opposite or alternating along its length. Heads radiate, sometimes showy; involucral bracts in several series of about equal length, the outer series glabrate, 3 mm long, linear, apically rounded and mucronulate, the inner series dorsally pubescent at the base, broader, slightly longer; receptacle convex; paleas scarious, 7 mm long, the costa striate, the tip darkened; ray florets 5-8, the corolla yellow, broad, apically minutely 2-3-denticulate or entire, the venation prominent, 2-3 cm long, 1-1.5 cm wide, the style mostly wanting, the ovary sterile; disc florets numerous, the corolla yellowish, ca. 5 mm long, tubular, the limb expanded, tubular, the margins of the lobes thickened, papillose, the anthers ca. 2 mm long, yellowish, basally subauriculate, the appendages narrow, ligulate, the filaments glabrous, the style branches apically ascending-pilose with a short, papillose, linear appendix, the style base inserted in a cylindrical nectary, the ovary fertile. Achenes dimorphic, the outer series few, shorter, slightly incurved and dull, the innermost numerous, linear, deeply sulcate, black, shiny, mostly straight, glabrous or with a few minute ascending bristles near the apex; carpopodium yellowish; pappus of 2-4 short awns, retrorsely barbed, yellow, 1-2 mm long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.33
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

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

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -7
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Bidens triplinervia habit picture by Trap Hers (cc-by-sa)

Leaf

Bidens triplinervia leaf picture by Trap Hers (cc-by-sa)
Bidens triplinervia leaf picture by Gabriel OLLIVIER (cc-by-sa)

Flower

Bidens triplinervia flower picture by Trap Hers (cc-by-sa)
Bidens triplinervia flower picture by Gabriel OLLIVIER (cc-by-sa)

Distribution

Bidens triplinervia world distribution map, present in Argentina, Belgium, Bolivia (Plurinational State of), Chile, Colombia, Costa Rica, Ecuador, Guatemala, Honduras, India, Mexico, Panama, Peru, El Salvador, and Venezuela (Bolivarian Republic of)

Identifiers

LSID urn:lsid:ipni.org:names:185294-1
WFO ID wfo-0000009603
COL ID LSLQ
BDTFX ID 82097
INPN ID 717733
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Bidens mollis Bidens pectinata Bidens triplinervia Bidens crithmifolia Bidens pedunculata Bidens delphiniifolia Bidens canescens Bidens glaberrima Bidens attenuata Bidens geraniifolia Bidens consolidifolia Bidens affinis Bidens consolidaefolia Bidens hirtella Bidens procumbens Bidens serrata Bidens humilis Bidens triplinervia f. macrantha Bidens triplinervia f. triplinervia Bidens artemisiifolia Bidens pilosa f. hirsutior Bidens artemisiifolia f. artemisiifolia Bidens artemisiifolia Bidens artemisiifolia var. artemisiifolia Bidens humilis var. tenuifolia Bidens triplinervia var. triplinervia Bidens triplinervia var. eurymera Bidens grandiflora var. humilis Bidens humilis var. tenuifolius Bidens triplinervia var. mollis Bidens grandiflora var. breviloba Bidens triplinervia var. boyocana Bidens triplinervia var. nematoidea Bidens humilis var. major Bidens triplinervia f. exaristata Bidens triplinervia f. octoradiata Bidens humilis var. macrantha