Dense, rigid shrublet. Leaves 3-foliolate, leaflets oblanceolate, flat, leathery, recurved, spine-tipped, ± veiny, shiny, glabrous. Flowers in a terminal head, yellow, fading reddish, wings glabrous, keel hairy, calyx hairy, lobes triangular, spine-tipped, the lowest lobe enlarged with a recurved tip.