Pallid Milkweed (Asclepias cryptoceras)

Pallid Milkweed (Asclepias cryptoceras)

Pallid Milkweed (Asclepias cryptoceras), Dogbane Family (Apocynaceae), Locally native and common on dry, open places in sandy, clay, and serpentine soil, in sagebrush or shadscale, or pinyon-juniper and aspen communities, from semi-desert shrublands to foothills on...
Black-eyed Susan (Rudbeckia hirta var. pulcherrima)

Black-eyed Susan (Rudbeckia hirta var. pulcherrima)

Black-eyed Susan (Rudbeckia hirta var. pulcherrima), Aster Family (Asteraceae), Common in meadows and forests from the plains to montane, Eastern and Western Slope. Blooms June to September. Photo by Nicole Ellison, Red Rocks, Denver...
Western Indian Paintbrush (Castilleja occidentalis)

Western Indian Paintbrush (Castilleja occidentalis)

Western Indian Paintbrush (Castilleja occidentalis), Broomrape Family ( Orobanchaceae), common, growing in alpine and mountain meadows, subalpine to alpine on the Eastern and Western Slope of Colorado. Blooms June to September. Photo by Mo Ewing in Summit...
Fish Lake Thistle (Cirsium clavatum) photo by Mo Ewing

Fish Lake Thistle (Cirsium clavatum) photo by Mo Ewing

Fish Lake Thistle (Cirsium clavatum), Aster Family (Asteraceae). A thistle native to Colorado which is common in rocky soil of mountain meadows and forest clearings on the Eastern and Western Slopes of Colorado. Grows from the foothills to the sub-alpine. Blooms June...