HABIT	AN ANNUAL DECUMBENT HERB, 20-60 CM TALL.
STEMS	GLABROUS OR PUBESCENT; BRANCHES UP TO 40 CM LONG.
LEAVES	LEAVES 3-FOLIOLATE; LEAFLETS OBOVATE TO OBCORDATE; TERMINAL LEAFLETS 8–27 MM LONG, 7–20 MM WIDE, ENTIRE OR TOOTHED TOWARDS APEX, SOMETIMES WITH DARKER FLECKS OR A BASAL DARKER PATCH; STIPULES DEEPLY INCISED, GLABROUS OR HAIRY ON LOWER SURFACE.
FLOWERS	INFLORESCENCES 1–3-FLOWERED; PEDUNCLE SHORTER THAN TO TWICE AS LONG AS SUBTENDING PETIOLE. FLOWERS YELLOW.
FRUITS	A POD; SPIRALLY COILED TWO TO THREE TURNS WITH TWO ROWS OF CURVED PRICKLES ALONG ITS SHARP EDGES. THE POD IS ABOUT 8 MM IN DIAMETER, BROWN OR SLIGHT STRAW COLORED.
SEEDS	1.5 MM LONG, 3.0 MM WIDE, KIDNEY SHAPED, YELLOWISH OR TAN, SMOOTH.