Mucuna bracteata Dc. ex Kurz

Species

Angiosperms > Fabales > Fabaceae > Mucuna

Characteristics

Twining vines. Stems glabrous or with dense short pale adpressed hairs. Leaves 14-30(-40) cm; petiole 6-11 cm; stipels 2-5 mm, robust; leaflets thickly papery or almost leath­ery, adaxially sparsely or densely hairy with hairs denser on veins, abaxially densely hairy with hairs sparser on veins, rarely glabrous on both sides, lateral veins 5-7 pairs, prominent and conspicuous, straight and running into margin; terminal leaflet rhombic or sometimes rhombic-obovate or broadly ovate, 7-14 × 5.6-11(-13) cm, base broadly cuneate to rounded, apex acute or slightly acuminate; lateral leaflets 7-14 × 4-9 cm, width ratio of abaxial to adaxial halves 2-3:1, base on abaxial side truncate. Inflorescence axillary, 18-41 cm, with usually more than 12 flowering nodes always clustered in upper 2/3 of inflo­rescence; lower part of inflorescence axis with many bracts or their scars; bracts and bracteoles persistent at flowering and often fruiting time, hairy, bracts obovate to lanceolate or linear-lanceolate; pedicels 4-7 mm, densely short spreading hairy and often with longer fine bristles. Calyx densely clothed with soft hairs and yellow-brown irritant bristles; tube 4-7 × 7-10 mm; lateral 2 lobes 2-4 mm, lowest 5-6 mm. Corolla deep purple; standard 1.6-2.3 cm; wings 2.5-3.3 cm × 6-8 mm; keel 2.5-4.3 cm. Legume linear, not or slightly swollen around seeds, straight or slightly downcurved, 6-9 × 1.2-1.6 cm, fleshy, clothed with dark brown irritant hairs. Seeds 3-6, brown or black, usually with pinkish brown marks, ellipsoidal, ca. 9 × 6 mm, ca. 4 mm thick; hilum ca. 5 mm.
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A twining herb. The leaves are 14-30 cm long. They have leaflets. The flowering shoots are in the axils of leaves and are 18-41 cm long. The flowers are clustered along these. They are deep purple. The pod is narrow and 6-9 cm long by 1-2 cm wide. There are 3-6 dark brown seeds. These are 9 mm long by 6 mm wide and 4 mm thick.
Life form perennial
Growth form
Growth support climber
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway -

Environment

Found in a wide variety of habitats, including in hilly evergreen forests and sometimes in secondary vegetation, also in grasslands and beside roads and rivers; at elevations from 600-2,000 metres.
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It is a subtropical plant. It grows in forests and by rivers between 600-2,000 m above sea level. In Yunnan.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

The seeds are cooked and eaten as a vegetable.
Uses medicinal
Edible seeds
Therapeutic use Astringent (unspecified), Diuretic (unspecified), Dropsy (unspecified), Emmenagogue (unspecified), Evil eye (unspecified), Gall (unspecified), Stimulant (unspecified), Vermifuge (unspecified), Elephantiasis (unspecified), Sore (unspecified), Hepatitis (unspecified), Nerves (unspecified), Purgative (unspecified), Renitis (unspecified), Bladder (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) 21 - 90
Germination temperacture (C°) 18 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Mucuna bracteata world distribution map, present in Bangladesh, China, India, Lao People's Democratic Republic, Myanmar, Thailand, and Viet Nam

Conservation status

Mucuna bracteata threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:60461840-2
WFO ID wfo-0000197938
COL ID 44HLM
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Mucuna bracteata Carpopogon bracteatus Stizolobium venulosum Mucuna venulosa Mucuna brevipes Mucuna exserta Stizolobium bracteatum