Stems erect, branched, 1-4.5(-8) dm, farinose; basal branches erect, often weak; distal branches erect or nearly so, sparse. Leaves nonaromatic; petiole 0.2-0.7 cm; blade elliptic-oblong or narrowly lanceolate, 3-veined, 1-2.5(-3) × 0.3-0.6(-0.8) cm, base cuneate, margins entire, apex acute to rounded, densely farinose abaxially. Inflorescences glomerules in lateral spikes or panicles, 5-7 cm; glomerules densely spaced, maturing irregularly; bracts leaflike. Flowers: perianth segments 5, distinct nearly to base; lobes elliptic, oblong, or narrowly ovate, 0.8-1 × 0.6-0.8 mm, apex rounded, slightly keeled, densely farinose, erect and exposing fruit at maturity; stamens 5; stigmas 2, 0.2 mm. Achenes ovoid; pericarp adherent, minutely tuberculate. Seeds round, 1-1.4 mm diam., margins rounded; seed coat black, rugulate. 2n = 18. Fruiting late summer-early fall. Open, dry or moist areas including prairies, pastures, sand hills, roadsides, lakeshores; 500-3000 m; Alta., B.C., Sask.; Ariz., Calif., Colo., Nev., N.Mex., Oreg., Tex., Utah, Wash., Wyo.
Plant: Annual 30-80 cm Leaves: blade 8-30 mm, narrowly lanceolate to elliptic, entire, ± densely powdery below, glabrous to sparsely powdery above INFLORESCENCE: spheric clusters, spikes, or panicle-like, generally dense; bracts generally 0; flowers generally sessile Flowers: sepals not enclosing fruit, smooth, powdery; stamens generally 5; ovary lenticular to spheric, stigmas 2-5 Fruit: ± 1 mm diam; wall adherent to seed; Seed horizontal, red-brown to black; wall very thin Misc: Open places, scrub, woodland; 300-2700 m.