Swainsona cornuta Joy Thomps.

Scientific Description

Prostrate,spreading or scrambling, herb. Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, continuous with stem, 27-40 mm long, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, leaflets 7-9, pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules present and persistent to older leaves, 9-12 mm long, without glands, ribless. Pedicel present, 2-2.5 mm long, hairy. Bracteoles present and persistent, 2-2.2 mm long, hairy, not striate. Calyx 5-6 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 11.5-15 mm long, uniformly coloured, purple; claws present; standard 13-16 mm long, glabrous, not auriculate, wings 8-9.5 mm long, not auriculate, keel 12-14 mm long, not beaked, not auriculate, glabrous. Stamens ten; anthers 0.5-0.7 mm long, at two different levels (filaments alternately long and short); filaments united in an open sheath with one free stamen, 8-9 mm long. Ovary stipitate, glabrous; style 11-13 mm long, hairy or glandular towards the base, bearded (with a tuft of hairs at apex), flattened at apex. Fruit dehiscent (a pod or follicle), stipitate, not constricted between the seeds, round in cross-section, not beaked. Flowers in August. Occurs in the Eremaean Botanical Province, in the Carnarvon and Murchison IBRA regions.