Desmodium cajanifolium (Kunth) Dc.

Tropical ticktrefoil (en)

Species

Angiosperms > Fabales > Fabaceae > Desmodium

Characteristics

Herbs or shrubs, not much branched, 2-4 m high; stem terete, striate, densely uncinulate pubescent and pilose. Leaves trifoliolate, stipulate, short petiolate; stipules obliquely ovate, long attenuate, striate, ciliate, pilose and puberulent, early deciduous, ca. 4 mm long and 2 mm wide; petioles narrowly sulcate, densely uncinulate pubescent and pilose, 0.7-1 cm long; the leaf rachis similar, 0.6-0.7 cm long; stipels lance attenuate, striate, ciliate, to 3.5 mm long; petiolules densely pilose to 2.5 mm long; leaflets narrowly ovate, obtuse and mucronate at the apex, cuneate to obtuse at the base, lustrous on the adaxial surface, pilose along the midrib and with scattered puberulence, duller and rather densely pilose abaxially; terminal leaflets 5-9 cm long, 1.6-3.3 cm wide, lateral leaflets 3.3-6 cm long, 1.3-2.5 cm wide. Inflorescence terminal and axillary, racemose to racemose pani-culate, much branched and densely flowered; rachis somewhat angulate, uncin-ulate pubescent; bracts early deciduous, primary bracts ovate acumi-nate, striate, puberulent, ciliate, each subtending 2 pedicels, 2-3.5 mm long, 0.5-1.5 mm wide; secondary bracts each subtending 1 pedicel (laterally), subulate, ciliate, to 1 mm long; pedicels slender, ascending, short spreading pilose, 5-6 mm long. Flowers with the calyx bilabiate, pilose and puberulent throughout, the teeth of both lobes ciliate; central tooth of lower lobe lanceolate to lance atten-uate, 3-4 mm long, lateral teeth acute to obtuse, 2.5-3.5 mm long, the upper lobe only slightly bifid, 2.5-3.5 mm long; petals, especially the standard, papillate, the standard obovate, retuse, narrowed to the cuneate base, 5.5-8 mm long, 2-3 mm wide, the wings oblong, auriculate, unguiculate, equalling standard in length and width (above claw), the keel petals obliquely oblong, long unguiculate, equalling standard in length, 1.5-2 mm wide. Loment to 6-articulate, stipitate, stipe pilose to 3.5 mm long, but not exceeding calyx, articles obtusely triangular, isthmi narrow and eccentric, margins pilose, surfaces uncinulate puberulent and pilose, 5-6 mm long, 4-4.5 mm wide; seed obtusely oblong, 2 mm long, 1.3 mm wide.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.0 - 4.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

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

Cultivation

Mode -
Germination duration (days) 30 - 90
Germination temperacture (C°) 23 - 26
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Desmodium cajanifolium habit picture by Nelson Zamora Villalobos (cc-by-nc)
Desmodium cajanifolium habit picture by Nelson Zamora Villalobos (cc-by-nc)

Leaf

Desmodium cajanifolium leaf picture by Nelson Zamora Villalobos (cc-by-nc)
Desmodium cajanifolium leaf picture by Nelson Zamora Villalobos (cc-by-nc)
Desmodium cajanifolium leaf picture by Nelson Zamora Villalobos (cc-by-nc)

Flower

Desmodium cajanifolium flower picture by Nelson Zamora Villalobos (cc-by-nc)
Desmodium cajanifolium flower picture by Nelson Zamora Villalobos (cc-by-nc)
Desmodium cajanifolium flower picture by Nelson Zamora Villalobos (cc-by-nc)

Fruit

Desmodium cajanifolium fruit picture by Nelson Zamora Villalobos (cc-by-nc)

Distribution

Desmodium cajanifolium world distribution map, present in American Samoa, Bonaire, Sint Eustatius and Saba, Bolivia (Plurinational State of), Brazil, Colombia, Costa Rica, Guatemala, Sri Lanka, Mexico, Mauritius, Nicaragua, Panama, Peru, Seychelles, United States of America, and Venezuela (Bolivarian Republic of)

Conservation status

Desmodium cajanifolium threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:1108524-2
WFO ID wfo-0000170487
COL ID 3533G
BDTFX ID -
INPN ID 629539
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hedysarum mucronatum Hedysarum cajanifolium Meibomia cajanifolia Hedysarum multiflorum Desmodium cajanifolium