Herbaceous perennial with hairy trailing or climbing to 3m, glabrous stems, 3-foliolatecoriaceous glabrous leaves 50mm long, axillary or terminal umbels with spurred bracts, of 2-5 scented flowers, pink, mauve, blue, violet or red usually with green or yellow spot at base, calyx to 12mm, corolla to 25mm, standard 16mm wide, keel with acute recurved beak, pod 120mm x 8mm