or perennial, erect or prostrate herbs. Leaves even-pinnate, with 2 opposite
pairs of obovate leaflets, stipules prominent, linear, stipels absent. Flowers
in dense axillary spikes, sessile, bracts 2, auriculate, bracteoles linear.
Sepals 5, connate. Petals inserted with stamens, standard suborbicular, wings
oblong, free, keels curved, beaked. Stamens 8-10, connate in closed tube,
anthers alternately longer, versatile. Ovary sessile, 1-7 ovuled, styles long,
stigmas terminal. Fruits lomentum, oblong, indehiscent, thick walled,
developing below the soil. Seeds 1-3, irregularly ovoid, cotyledons thick,