Suffruticose, branching, over 1 m. high, glabrous. Leaves straight, strongly asymmetric, ovate or elliptic, acute, 8-9 cm. long, rounded at base, pinnate, subulate-dentate, petioles much shorter than the blades, stipules oblong-cordate, long-aristate, membranaceous. Peduncles axillary, about 15 cm. long. Inflores-cences umbelliform, globose, 50-60-flowered. Pedicels elongate. Flowers white. Staminate tepals 4, subequal, broadly elliptic, obtuse, entire. Stamens about 30, slightly connate at base, anthers oblong. Pistillate tepals 5, oblong or lance-oblong, subacuminate. Styles 3, connate, stigmatic tissue lunate. Fruit 3-winged, the wings very unequal, the largest much wider than high, twice the width of the others.