Fls in simple or branched racemes to solitary; calyx ± campanulate, 5-toothed; standard ± orbicular, clawed; keel incurved, clawed, auricled; wings ± falcate, auricled. Stamens diadelphous. Ovary with slender style (persisting as a "beak") and minute capitate stigma; ovules us. few. Fr. ("pod") dry; margins thickened, persistent ("replum"). Valves 2, hardened in fr. Both valves or one completely or partly separating from replum in dehiscence (pod ind., except rarely, in subgenera Monroella and Huttonella). Seeds 1-12 per pod, ± reniform. Shrubs or small trees, of diverse habits. Besides the N.Z. spp. there is C. exsul of Lord Howe Id, of the subgenus Carmichaelia.