Perennial shrubs; branches rush-like glabrous. Leaves alternate, usually reduced to filiform petioles; stipules small, scarious. Inflorescence a terminal or upper axillary raceme or panicle; bracts scarious; bracteoles absent. Calyx campanulate, 5-toothed, teeth short, subequal; petals long-clawed, yellow or orange with red markings; standard orbicular, emarginate; wings oblong, shorter than standard; keel obtuse, slightly curved, shortest; stamens free; ovary subsessile, glabrous; style filiform with a small terminal stigma, ovules 2. Pod obovoid, obliquely beaked, sessile, indehiscent; seed usually solitary, arillate.
Monotypic genus endemic to Australia.