Usually erect or somewhat trailing annual or biennial, herb, to 1.5 m high. Fl. pink/red/purple, Mar to Jun. Yellow-grey sand over sandstone, black soils. Banks of rivers & channels, roadsides, waste grounds.
Twining or climbing plants, herb. Stems flattened, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, compound, alternate, not continuous with stem, 50-90 mm long, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, pinnately arranged, terminal leaflet present, stalked; pustules or glands absent. Stipules present and persistent to older leaves, 8-9.5 mm long, without glands, ribless. Bracteoles absent. Corolla multicoloured, mostly pink, red or purple, with some pink, red or purple spots, streaks or blotches. Stamens ten, NaN (?) mm long. Fruit dehiscent (a pod or follicle), 55-90 mm long, 2-3 mm wide, sessile or subsessile, not constricted between the seeds, round in cross-section, hairy, with simple hairs, not beaked. Flowers in March, April, May and June. Occurs in the Northern and Eremaean Botanical Province, in the Great Sandy Desert and Victoria Bonaparte IBRA regions.