Jacksonia arida Chappill

Scientific Description

Erect, prostrate,spreading or scrambling or twining or climbing plants, shrub, spindly shrub (broom-like). Stems terete, spiny at least in part, hairy; pustules or glands absent. Leaves or phylloclades absent or apparently so (reduced to scales), alternate, not continuous with stem, hairy, with simple hairs, flat with flat margins; margins dentate; tubercles absent, 0.5-2.5; pustules or glands absent. Stipules apparently absent even from the youngest leaves. Pedicel present, 3.5-5 mm long, hairy. Bracteoles present and persistent. Calyx 10-11 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 13 mm long, multicoloured, mostly yellow, red or orange, with some yellow, red or orange spots, streaks or blotches; claws present; standard 7.5-8 mm long, glabrous, not auriculate, wings 7-9 mm long, not auriculate, keel 8-9.5 mm long, not beaked, not auriculate, glabrous. Stamens ten; anthers 0.7-1 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 7.5-7.7 mm long. Ovary stipitate, hairy or glandular; style 9.5-10.5 mm long, hairy or glandular towards the base, not bearded, terete. Fruit dehiscent (a pod or follicle), stipitate or sessile or subsessile, not constricted between the seeds, round in cross-section, not beaked. Flowers in March, June, July, August, September, October and November. Occurs in the Eremaean and South-West Botanical Province, in the Gascoyne, Yalgoo, Murchison, Great Victorian Desert, Coolgardie, Geraldton Sandplains and Avon Wheatbelt IBRA regions.