Perennial glandular-hairy herbs. Leaves alternate, imparipinnate; leaflets 5–17, rarely trifoliolate, gland-dotted, aromatic; stipules lanceolate, minute, membranous, caducous. Inflorescence a 10–60-flowered axillary raceme or spike; bracts small, caducous; bracteoles absent; calyx campanulate, teeth subequal, upper 2 partly united; petals yellow or blue to mauve; standard ovate to lanceolate or oblong, subsessile; wings shorter, oblong; keel shortest, obtuse to acute; stamens diadelphous, upper one cohering at the base, anthers alternately long and short; ovary sessile, ovules 2–4, style incurved, glabrous, stigma oblique. Pod laterally compressed (in Victoria) or terete, short, smooth, glandular or echinate, sometimes dehiscent; seeds 1–several, exarillate.
About 18 species, cosmopolitan but mostly in temperate and subtropical regions; 2 species in Australia (1 endemic and 1 introduced).