Sprawling or mat-forming shrublet. Leaves 3-foliolate, leaflets subterete or slightly compressed, straight or ± incurved, glabrous. Flowers 1 or 2(-5) at branch tips, pale to bright yellow or back of standard partly purple, wings glabrous, keel somewhat rostrate, glabrous, calyx glabrous, lobes narrowly triangular, not spine-tipped.