or woody climbers. Leaves pinnately trifoliolate, resinous glands beneath,
stipules lanceolate, deciduous, stipels absent. Flowers scattered on rachis of
axillary peduncled racemes, bracts caducous, bracteoles absent. Sepals 5,
connate in campanulate tube. Petals exserted, standard orbicular, wings
obliquely obovate, keels obtuse, incurved at tip. Stamens diadelphous, 9+1,
vexillary filaments free, anthers uniform. Ovary subsessile, ovules 4-6, styles
long, stigmas oblique, capitate. Pods linear, inflated, valves with depressed,
oblique lines outside between seeds. Seeds compressed.