Indigofera haplophylla F.Muell.

Scientific Description

Erect, herb. Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, simple, alternate, continuous with stem, 15-45 mm long, 3-15 mm wide, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent; pustules or glands absent. Stipules present and persistent to older leaves, 0.5-1.5 mm long, without glands, ribless. Bracteoles present but early deciduous. Calyx 1.5-2.5 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 4-4.5 mm long, uniformly coloured, pink; claws absent; standard 4.5-5.5 mm long, glabrous, not auriculate, wings 4.5-5.5 mm long, not auriculate, keel 4.5-5 mm long, not beaked, not auriculate, glabrous. Stamens ten; filaments united in an open sheath with one free stamen. Ovary sessile or subsessile, glabrous. Fruit dehiscent (a pod or follicle), 25-40 mm long, 3-3.2 mm wide, sessile or subsessile, not constricted between the seeds, round in cross-section, glabrous, beaked. Flowers in 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.