Annual, 30-80 cm., stem divaricately branched, more or less mealy and canescent. Leaves up to 6 x 3 cm., triangular-deltoid to ovate-rhombic, unequally sinuate or dentate; upper leaves ovate-oblong. Inflorescence leafy to the top, 2-20-flowered; upper clusters of male flowers together with some female ones, the lower clusters consist of female flowers only. Valves 15-8 mm., sessile or rarely stalked, fused to its half, whitish, triangular-deltoid or rhombic, somewhat cuneate and indurated at base, irregularly toothed-lobed, reticulately veined, smooth or with tuberculate appendages on the back. Seeds red, 1.5-1.8 mm. in diam., and brownish, 1.7-2.2 mm.. Fl. June-October.