Jacksonia compressa Turcz.

Scientific Description

Erect, shrub, spindly shrub (broom-like). Stems terete, not spiny, 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 entire; tubercles absent, 0.5-2; pustules or glands absent. Stipules apparently absent even from the youngest leaves. Pedicel present, 3-4 mm long, hairy. Bracteoles present and persistent, 1-1.5 mm long, hairy, not striate. Calyx 14-20.5 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 15-20 mm long, uniformly coloured, yellow; claws present; standard 10.5-11 mm long, glabrous, not auriculate, wings 9-11 mm long, not auriculate, keel 13.5-16 mm long, not beaked, glabrous. Stamens ten; anthers 0.8-1.4 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 10-15 mm long. Ovary stipitate, hairy or glandular; style 13-16 mm long, hairy or glandular towards the base, not bearded, terete. Fruit dehiscent (a pod or follicle), 17-25 mm long, 5-6 mm wide, stipitate or sessile or subsessile, not constricted between the seeds, round in cross-section, hairy, with simple hairs, not beaked. Flowers in January, February, March, April, May, July, August, September, October, November and December. Occurs in the South-West Botanical Province, in the Esperance IBRA regions.