Tufted Evening Primrose (Oenothera caespitosa), Evening Primrose Family (Onagraceae) has four varieties. The first three are found from the plains to montane on the eastern and western slopes: var. cespitosa. Grows on dry slopes, outcrops, sandy soil, and in...
Colorado Four-O-Clock (Mirabilis multiflora), Four-O-Clock Family (Nyctaginaceae, native and common in open places, on shale outcrops, sometimes with pinyon-juniper, and often along roadsides, known from the southern and western counties on the eastern and western...
Sand Dune Wallflower (Erysimum capitatum), yellow form, Mustard Family (Brassicaceae) is native and common on the eastern plains, in the foothills, mountain meadows, and alpine tundra, sand dunes, and mesas and open places on the western slope, It comes with either...
Sand Dune Wallflower (Erysimum capitatum), purple form, Mustard Family (Brassicaceae) is native and common on the eastern plains, in the foothills, mountain meadows, and alpine tundra, sand dunes, and mesas and open places on the western slope, It comes with either...
Blue Sage (Salvia azurea var. Grandiflora), Mint Family (Lamiaceae). is an imperiled (S2) species in Colorado, but apparently secure (G4) globally, as it is found all through the midwestern United States. In Colorado it grows along roadsides on the eastern plains and...
