Shrub or small tree 40cm-2m tall. Leaves alternating up the stems, compound, with 7-10 pairs of leaflets, each flat, 0.3-0.6cm long, 2-4mm wide, glaucous, sparsely hairy. Flowers with 5 yellow petals, in clusters of 3-6 flowers, the stalks arisng from the bases of the leaves. Family was Caesalpiniaceae.
One record just west of the area covered by this key, in SA.
Description in Randell, B.R., (1989) Revision of Cassiinae in Australia 2. Senna Miller sect. Psilorhegma (J.Vogel) Irwin & Barneby. Journal of the Adelaide Botanic Gardens 12(2): 250