Corispermum americanum var. rydbergii Mosyakin
Family: Amaranthaceae
American bugseed,  more...
Corispermum americanum var. rydbergii image
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913  

Inflorescences always interrupted. Fruits (3-)3.5-4.5 × 2.5-3.5 mm; wing 0.3-0.4(-0.5) mm wide.

Flowering late summer-fall. Sandy areas; 100-2000 m; Ariz., Colo., N.Mex., Tex., Utah; n Mexico (Chihuahua).

Corispermum americanum var. rydbergii image
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913