Oil Shale Columbine (Aquilegia barnebyi)

Oil Shale Columbine (Aquilegia barnebyi)

Oil Shale Columbine (Aquilegia barnebyi), Buttercup Family (Ranunculaceae). Grows on moist shale or limestone cliffs and along streams, from semi-desert shrublands to montane on the west slope. Blooms from May through July. Photo by Margarete...
Sulphur Flower (Eriogonum umbellatum)

Sulphur Flower (Eriogonum umbellatum)

Sulphur Flower (Eriogonum umbellatum), Buckwheat Family (Polygonaceae), native and common on dry slopes, sagebrush flats, and in mountain meadows and forests, from the plains to montane on the eastern and western slopes. Blooms from June through October. Photo by Ed...
Apache Plume (Fallugia paradoxa)

Apache Plume (Fallugia paradoxa)

Apache Plume (Fallugia paradoxa), Rose Family (Rosaceae), Found in sagebrush, canyon bottoms, and on alluvial banks, native to the San Luis Valley, but often cultivated as a landscape plant elsewhere. Grows from plains to foothills on the east slope. Blooms from May...
Parry’s Locoweed (Oxytropis parryi)

Parry’s Locoweed (Oxytropis parryi)

Parry’s Locoweed (Oxytropis parryi), Pea Family (Fabaceae), Critically imperiled (S1) in Colorado, but secure (G5) globally, this species grows on rocky, open slopes in spruce-fir forests and the alpine tundra, from the montane to the alpine on the east and west...
Scrub Lotus (Lotus tenuis)

Scrub Lotus (Lotus tenuis)

Scrub Lotus (Lotus tenuis), Pea Family (Fabaceae). An introduced species found in rocky soil of open pine forests and along roadsides, mostly in the southwestern counties but also apparently introduced in Douglas County, from the plains to the foothills on the east...