Diffused, copiously branched, prostrate, annual herb; branchlets pubescent; leaves simple, subsessile, cordate-ovate, sub-obtuse or murcronate at apex, obscurely downy above, densely below; stipules minute, setaceous; flowers in dense, sessile, 4-8 flowered heads, in axillary racemes; calyx densely pubescent, teeth long, linear, setaceous; corolla bright red, not exserted or shorter than the calyx, irregular, imbricate, standard obovate, keel straight, not rostrate, spurred on each side near the base; stamens 9+1, diadelphous, anthers uniform, apiculate; ovary sessile, many ovuled, style short, incurved, stigma minute, capitate; pods linear, pubescent, usually 2 seeded, sometimes 1-seeded.