HABIT	ANNUAL OR PERENNIAL HERB.
STEMS	REDDISH AND SPARSELY PUBERULOUS.
LEAVES	PINNATELY TRIFOLIOLATE , LEAFLETS TOOTHED.
FLOWERS	INFLORESCENCE A PEDUNCULATE AXILLARY RACEME. FLOWERS PEDICELLATE, MOSTLY YELLOW, OR LESS OFTEN PURPLISH.
FRUITS	POD SPIRALLY COILED OR RARELY FALCATE , SOMETIMES PROVIDED WITH TUBERCLES OR SPINES AT THE MARGIN, MOSTLY INDEHISCENT, 1 TO MANY SEEDED.
SEEDS	OBLONG-CYLINDRICAL OR OBLONG-RHOMBOID, 2 MM LONG, BROWNISH, FINELY TUBERCULATE.