Argemone hispida (Rough Prickly Poppy)
Family: Papavaraceae (Poppy)

Flowers of Argemone hispida are very similar to flowers of Argemone polyanthemos. The species can be separated by looking at the stems, leaves and seed capsules. Stems and capsules of A. hispida are densely prickly. Leaves of A. hispida are deeply lobed.

Stems of Argemone polyanthemos are sparsely prickly and leaves are darker green with whitish veins and shallower lobes.

Vegetation zone:  Plains, Foothills (4900 - 7500 ft.)
Time of bloom:  May - July
Origin:  Native
Eastern Colorado Wildflowers