Vigna stipulacea (Lam.) Kuntze

Seed Collecting Guide. RBG Kew (2013-2016)

Morphology General Habit

habit trailing twining herb, stem angular, nearly glabrous, very sparsely covered with fine white hairs

Morphology Leaves

leaf leaflets glossy, upper surface very rarely covered with white short (0.3-0.4 mm) hairs, lower surface sparsely covered with 0.5-0.6 mm long white hairs, 0.4-0.8 mm long whitish hairs on vein; leaf petioles 5.1-7.6 cm long, sparsely covered with fine appressed white hairs, 0.4-0.6 mm long

Morphology Leaves Leaflets

lateral leaflets oblique, rather shallowly 2-3 lobed, obtuse or rounded at the apex, rounded at the base

Morphology Reproductive morphology Inflorescences

inflorescence 4-12 flowered; peduncles conspicuously long (22.7-29.6 cm), nearly glabrous to very sparsely covered with 0.4-0.5 mm long white hairs, rachis 3.7-4.7 mm long, glabrous

Morphology Reproductive morphology Inflorescences Bracts

primary bract ovate at the apex, rounded or sometime truncate at the base 2.3 x 2.2 mm glabrous

Morphology Reproductive morphology Flowers Calyx

calyx campanulate, 2.6 mm long, tube 2.2 mm long; standard asymmetrical, obliquely elliptic, 8.1 x 12.3 mm, emarginated at the apex, an internal appendage absent

Morphology Reproductive morphology Flowers

right wing obliquely broadly obovate, concealing right side of keel-petal fruit spreading, linear, 4.5-5.5 x 0.2-0.3 cm, covered with 0.3-0.5 mm long brown hairs, blackish brown when mature, 13-14 seeded flower shiny clear yellow

Morphology Reproductive morphology Seeds

seed elliptic, 2.7 x 2.0 x 1.9 mm, brown with small black mottle, surface rough, fine reticulate.

Ecology

ecology in open or lightly shaded ecologyes, on edge of paddy fields or in abandoned paddy fields. altitude5 - 700 m

Distribution

sri lanka, India, Myanamar, Indonesia, Vietnam, yemen, madagascar.

Conservation

conservation near endangered

Phenology

phenology Flower (october – december), fruit (october - december)