Annual herb becoming mostly 5-10 dm high; monoecious; stems sparsely stel- late, soon glabrate. Leaves membranous, petioles stellate-pubescent, glabrescent, (2-)4-8 cm long, the glands at apex of petiole several on the ventral side, globular, minute (ca 0.1-0.15 mm wide); stipules lanceolate to setaceous, acute or acuminate, subentire, ca 0.7-2.5 mm long; blades deeply lobed into 3(-5) elliptic-lanceolate to obovate-lanceolate acuminate lobes, ca 3-7 cm long, 5-9 cm broad, hispidulous- strigose on both sides with a few scattered stellate hairs beneath, obscurely glandu- lar-punctate; blades 3-5-nerved at base, lobes with ca 5-8 veins on each side, the base truncate to broadly cordate, the margins rather coarsely serrate or crenate, central lobe with ca 5-20 teeth on each side. Inflorescences terminal but sometimes appearing axillary, bisexual, racemiform, mostly 7-15 cm long, with (1-) 3-7 solitary female flowers at proximal axils, cymules of 2-4 male flowers at the 5-12 distal axils; bracts lanceolate, greenish, somewhat pubescent, often with basal lobes, ca 1-2.5 mm long under the female flowers, somewhat smaller under the male. Staminate flowers with glabrous pedicels ca 1.5-2.5 mm long; calyx-lobes 5, distinctly imbri- cate, elliptic, rounded at the tip, glabrous or very sparsely hispid, 1-1.2 mm long, 0.8-1 mm broad; receptacle glabrous; petals elliptic, glabrous, not punctate, 1.2-1.5 mm long, 0.5-1 mm broad; stamens (8-)12-15, the filaments glabrous, 0.9-1 mm long, the anthers broader than long, ca 0.3 X 0.4-0.5 mm. Pistillate flowers sub- sessile, the stellate pedicel becoming ca 2-3 mm long in fruit; calyx-segments 5, valvate, subequal or somewhat unequal, oblanceolate to linear, acute, greenish, sparsely hispidulous, ca 4.5-5.5 mm long, 1-1.5 mm broad, toothed with stalked glands in the lower half; disc dissected into 5 reniform segments ca 0.3-0.4 mm wide; ovary sparsely to densely pubescent with stellate and/or simple hairs, the styles essentially free, spreading, strigose-hipidulous, quadrifid in the distal half, glabrous or stellate-hispidulous, 2.5-3.5 mm long, the slender subulate branches 0.7-2.2 mm long. Capsules subglobose, 3-lobed, sparsely stellate, ca 6-6.5 mm in diam, the columella slender, ca 4 mm long; seeds oblong, tetragonal, brownish or fuscous, apically beaked, prominently rugulose-costate, 4.1-4.4 mm long, 2.2-3 mm broad, the caruncle reniform-peltate, 1-1.2 mm long and 1.9-2.2 mm broad when fully expanded (but often shrunken to smaller dimensions).