Thurber's Needlegrass
Eriocoma thurberiana
Synonyms: Achnatherum thurberianum, Stipa thurberiana
Thurber's needlegrass as seen on prehistoric Bretz Flood sand deposits at the southern base of Steamboat Rock, Steamboat Rock State Park.........June 1, 2013.
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Thurber's needlegrass as seen on prehistoric Bretz Flood sand deposits at the southern base of Steamboat Rock, Steamboat Rock State Park.........June 1, 2013. Note that the awn hairs are plumose for the first two turns.
Another close look at the awn hairs of Thurber's needlegrass as seen along the Round Mountain Trail #805 near Scissors Spring, Ochoco National Forest..........August 9, 2014.
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Close-up images of what may be Thurber's needlegrass as seen at left and at center in open ponderosa pine forest on Missoula Flood sandbars between Five Mile and the Little Spokane River, Spokane County, WA........June 29, 2019. The photo at right shows what may be Thurber's needlegrass as seen at the same location.......July 4, 2018.
A close-up view of the inflorescence of Thurber's needlegrass as seen along the Rimrock Springs Trail #850, Crooked River National Grasslands..........June 24, 2017.
Paul Slichter