Chenopodium missouriense Aellen
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Lvs mostly wider than in typical C. album, the lower ones to 1.5 times as long as wide; stem consistently purple at the nodes; infl less compact, more delicate and flexuous; seeds avg smaller, 0.9–1.2 mm wide; fl only in late season, mostly Sept. The name C. album var. missouriense (Aellen) Bassett & Crompton is available.