California Danthonia, California Oatgrass, California Oat-grass, California Wild Oat-grass: Danthonia californica (Synonyms: Danthonia americana, Danthonia californica var. americana, Danthonia californica var. californica, Danthonia californica var. palousensis, Danthonia californica var. piperi)

The photo at left shows a close-up of the inflorescence of oatgrass as seen in drying grasslands (vernally, very moist) along Kreps Lane in Conboy Lake NWR to the southeast of Mt. Adams........June 15, 2008. The photo at right shows a close-up of the inflorescence and upper stem of oatgrass as seen in drying grasslands (vernally, very moist) along Kreps Lane in Conboy Lake NWR to the southeast of Mt. Adams........June 15, 2008. Plants at this location form clusters of attractive green basal leaves and multiple stems with spreading florets at the apex of the stem.

These 4 photos show close-up views of the stem hairs and inflorescence of California oatgrass as seen at the Pacific Crest Trail trailhead (off of road #521) on the western slopes of Mt. Adams.......September 13, 2008.

The photo at left shows California oatgrass as seen at the Pacific Crest Trail trailhead (off of road #521) on the western slopes of Mt. Adams........September 13, 2008. The plants at this location may have arrived via horse manure or via horse trailers. The photo at right shows a close-up of the inflorescence of California oatgrass in a vernally moist swale at the Klickitat Breaks, Klickitat Wildlife Area......May 26, 2020.

The image at left shows a close-up of the seed head of California oatgrass as seen along Laurel Road.........August 11, 2008. The image at right shows a habitat view of California oatgrass as seen in vernally moist wetlands at the southeastern corner of Conboy Lake NWR, looking north towards Mt Adams......June 18, 2025.