Plant: Annual; stem prostrate, rooting at nodes; glabrous; sap milky Leaves: cauline, opposite, short-petioled, 2-7 mm; stipules fused, triangular; blade ovate to oblong, glabrous, tip obtuse, margin entire INFLORESCENCE: flower-like, generally 1 per node; involucre < 1.5 mm, obconic, glabrous; gland < 0.5 mm, oblong; appendages wider than gland, scalloped, white Flowers: Staminate flowers 5-10, generally in 5 clusters around pistillate flower, each flower a stamen; Pistillate flower: 1, central, stalked; ovary chambers 3, ovule 1 per chamber, styles 3, divided 1/2 length Fruit: capsule< 1.5 mm, spheric, lobed, glabrous; Seed < 1.5 mm, ovoid, smooth, white to brown Misc: Waste areas; < 200 m.