Rocky Mountain Sedge - Carex scopulorum var. bracteosa
Widespread through the Park between 4000 and 6000 feet in wet meadows and at the shores of ponds and lakes. Photographed (left) in a meadow south of Cayuse Pass on July 22, 2014, and (right, in an unusual location) in a ditch at Ricksecker Point on August 6, 2015.