Sisyrinchium genus --- iris family

strict blue-eyed grass (Sisyrinchium montanum var. montanum) -- in May -- Bellvue, Larimer County Foothills           blue & purple      

strict blue-eyed grass (Sisyrinchium montanum var. montanum) -- in May -- Horsetooth Mountain, Larimer County Open Space, CO

pale blue-eyed grass (Sisyrinchium pallidum) -- in July -- High Creek Fen Preserve, Park County, CO         blue & purple ​