About Muhlenbergia richardsonis (Trin.) Rydb.
Muhlenbergia richardsonis (Trin.) Rydb. is a rhizomatous perennial grass. It forms mats from knotted stems that grow up to roughly 40 centimeters long, and produces blue-green leaves that reach up to 5 or 6 centimeters in length. Its inflorescence is a narrow cylindrical structure made up of tightly appressed branches, which hold gray-green, single-flowered spikelets that measure 2 or 3 millimeters long. This grass grows in a wide range of habitat types, including alpine mountain talus and meadows, wet alkaline and saline soils, desert arroyos, chaparral, forests, and woodlands. It is botanically interesting as an alpine plant that uses C4 carbon fixation; it has been reported growing at higher altitudes than any other C4 plant in North America. It occurs at an elevation of 3,670 metres (12,040 ft) in California, including the White Mountains, and at 3,200 metres (10,500 ft) in Utah.