Cristonia biloba (Benth.) J.H.Ross subsp. biloba

Scientific Description

Erect, shrub, spindly shrub (broom-like). Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades clearly present, simple, alternate, not continuous with stem, 11-20 mm long, 3-4.5 mm wide, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent; pustules or glands absent. Pedicel present, 5-6 mm long, hairy. Bracteoles present and persistent, 1.4-2 mm long, hairy, not striate. Calyx 7-11.5 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 13-16 mm long, multicoloured, mostly yellow or brown, with some yellow or brown spots, streaks or blotches; claws present; standard 12-14 mm long, glabrous, not auriculate, wings 10-13.5 mm long, not auriculate, keel 12-15 mm long, not beaked, not auriculate, glabrous. Stamens; anthers 0.8-1 mm long, at two different levels (filaments alternately long and short), 9-13 mm long. Ovary sessile or subsessile, glabrous; style 15-16 mm long, glabrous, not bearded, terete. Fruit dehiscent (a pod or follicle), sessile or subsessile, not constricted between the seeds, flat or compressed, beaked. Flowers in March, May, June and July. Occurs in the South-West Botanical Province, in the Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain IBRA regions.