Vigna lanceolata var. filiformis Benth.

Scientific Description

Twining or climbing plants. Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, not continuous with stem, 50-85 mm long, glabrous, flat with flat margins; margins entire; tubercles absent, pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules present but early deciduous ( only visible on youngest leaves ). Pedicel present, 1.5-2 mm long, glabrous. Bracteoles present but early deciduous, 1-2 mm long, glabrous, not striate. Calyx 3-3.7 mm long, not accrescent, glabrous, ribless; pustules or glands absent. Corolla 7.5-11 mm long, uniformly coloured, yellow; claws present; standard 7.5-10 mm long, glabrous, not auriculate, wings 6-7 mm long, not auriculate, keel 8-9.5 mm long, not beaked, not auriculate, glabrous. Stamens; anthers 0.2-0.3 mm long, at two different levels (filaments alternately long and short); filaments united in an open sheath with one free stamen, 9-11 mm long. Ovary stipitate, hairy or glandular; style 14-14.5 mm long, hairy or glandular towards the base, not bearded, terete. Fruit dehiscent (a pod or follicle), stipitate, constricted between the seeds, flat or compressed, glabrous, not beaked. Flowers in February, March, April and May. Occurs in the Northern Botanical Province, in the Northern Kimberley, Victoria Bonaparte, Central Kimberley, Ord-Victorian-Plain and Dampierland IBRA regions.