Plant: Annual; stem ascending to erect, 1-4.5 dm, glabrous Leaves: cauline, generally alternate,1-3.5 cm, petioled; blade obovate to ovate, glabrous, tip obtuse to notched, margin entire INFLORESCENCE: involucre 1-1.5 mm, bell-shaped, glabrous; gland < 0.5 mm, crescent-shaped, 2-horned Flowers: Staminate flowers 10-15, generally in 5 clusters around pistillate flower; Pistillate flower: 1, central, stalked; ovary chambers 3, ovule 1 per chamber, styles 3, divided 1/2 length Fruit: capsule, ± 2 mm, spheric, glabrous, lobed; lobes 2-keeled; Seed 1-1.5 mm, oblong, 4-angled, dotted, white to gray Misc: Waste places, gardens; < 300 m.; Feb-Aug