Apocynum cannabinum
(Hemp Dogbane)
Family: Apocynaceae (Dogbane)
Apocynum cannabinum grows along roadsides and in ditches on the plains. Leaves are opposite and plants have a milky juice. Seed pods are long and narrow. This species could easily be confused with a milkweed. The flowers of A. cannabinum, however, lack the complicated corona structures found on milkweeds.

Vegetation zone:  Plains, Foothills   (3400 - 7500 ft.)
Time of bloom:  June - August
Origin:  Native
Eastern Colorado Wildflowers