Poinsettia dentata (Toothed Spurge)
Family: Euphorbiaceae (Spurge)

Flowers and fruit of Poinsettia dentata appear at the top of the plant surrounded by what appears to be a whorl of toothed leaves. Plant height varies from several inches on dry sites to two feet on moist sites.

Vegetation zone:  Plains, Foothills
Time of bloom:  June - September
Origin:  Introduced
Eastern Colorado Wildflowers