Argyrolobium rotundifolium T.J.Edwards

Herbaceous perennial, up to 150 mm tall, but usually prostrate, well branched, stems shortly rufous-tomentose, becoming glabrous. Leaves moderately tomentose above, densely tomentose beneath; leaflets broadly ovate to suborbicular 14-32 x 10-25 mm, petiole tomentose, 10-30 mm long; apex obtuse to rounded, apiculate; margins densely rufous-tomentose; stipules free, setaceous to lanceolate, up to 10 x 1.5 mm. Inflorescence pseudo-umbellate, 1-4(-6)-flowered, initially terminal but becoming leaf-opposed; peduncle (30-)40-150 mm long; bracts linear or narrowly elliptic, up to 6 x 1 mm, bracteoles linear, up to 3 mm long. Flowers dimorphic. Calyx sparsely to densely pilose; upper lobes 8-10 mm long, lower lip 8-10 mm long, lobes 3-4 mm long. Corolla bright yellow becoming russet; standard suborbicular, 11-14 x 12-14 mm, adaxial surface sericeous, base cordate, claw 1.0-1.5 mm long; wings obovate, 9-12 x 4.5-6.0 mm, distally pilose, without sculpturing, claw 1.5-2.0 mm long; keel cymbidiform, 8-10 x 4.5-5.5 mm, pilose on lower margin, claw 1.5-2.5 mm. Stamens monadelphous, sheath fused above. Pistil narrowly oblong; ovary 6-8 x 1-2 mm; style 3-4 mm long. Fruit rufous-pilose, compressed, up to 45 x 5 mm. Seed subglobose, laterally compressed, 2.5-3.0 mm in diameter, yellow to light brown, hilar rim raised.