Cycloloma atriplicifolium (Spreng.) J.M.Coult.
Family: Amaranthaceae
winged pigweed
Cycloloma atriplicifolium image
Daniel Mullen  
Etymology: Cycloloma: from Greek cyclos, "a circle," and loma, referring to the calyx-wing, so "circular wing"
Plants: erect to spreading, annual, 4"-32" tall forb turning reddish at maturity; stems densely branched
Leaves: irregularly toothed, smaller toward the top, all falling as the plant matures
Flowers: green, minute, 5-parted, stalkless, no petals, sepals becoming reddish; inflorescence an interrupted spike from most of the top branches; blooms July-Aug.
Fruits: winged
Habitat: sun; dry; in sandy soil
Conservation Status: Native