Erect or sprawling shrublet, 10-60 cm. Leaves 3-foliolate, leaflets fascicled, subterete, recurved-pungent, subglabrous. Flowers single on short shoots, scattered, bright yellow, fading orange, wings and keel glabrous, calyx glabrous or sparsely adpressed-hairy, lobes narrowly triangular, pungent.