Yellow Sundrops (Oenothera serrulata var. serrulata)

Yellow Sundrops (Oenothera serrulata var. serrulata)

Yellow Sundrops (Oenothera serrulata var. serrulata) is a native forb in the Evening Primrose family (Onograceae) and is common in shortgrass prairie, grasslands, sandy soil, and on outcrops, from the plains to the foothills on the eastern slope. It blooms from May...
Sand Bluestem (Andropogon hallii)

Sand Bluestem (Andropogon hallii)

Sand Bluestem (Andropogon hallii) is a native grass in the Poaceae family which is common on sandhills and sand dunes of sandsage prairie on the eastern slope. It blooms from July through September. Photo by Mo...
Needle and Thread Grass (Hesperostipa comata)

Needle and Thread Grass (Hesperostipa comata)

Needle and Thread Grass (Hesperostipa comata), in the Grass Family (Poaceae) is a native grass, common in shortgrass prairie, grasslands, sagebrush, and open forests and meadows, from the plains to the montane on the eastern and western slopes. Blooms from May through...
Fisher Milkvetch (Astragalus piscator)

Fisher Milkvetch (Astragalus piscator)

Fisher Milkvetch (Astragalus piscator) is a native wildflower in the Pea Family (Fabaceae). It is a rare plant listed as critically imperiled in Colorado (S1), but vulnerable (G3) globally because it is also found in Arizona and Utah. It grows in rocky or clay soil,...
Open Field Sedge (Carex conoidea)

Open Field Sedge (Carex conoidea)

Open Field Sedge (Carex conoidea), in the Sedge Family (Cyperaceae) is listed as critically imperiled in Colorado (S1), but secure globally because it is found in several midwestern and eastern states. It grows in moist meadows and along streams, only in Jefferson...