[Needlegrass and Ricegrass: The Genus Achnatherum East of the Cascade Mountains of Oregon and Washington]

Columbia Needlegrass, Nelson's Needlegrass

Achnatherum nelsonii ssp. nelsonii

Synonyms: Stipa columbiana var. nelsonii, Stipa nelsonii ssp. nelsonii, Stipa nelsonii var. nelsonii, Stipa occidentalis var. nelsonii, Stipa williamsii

Columbia Needlegrass, Nelson's Needlegrass: Achnatherum nelsonii ssp. nelsonii (Synonyms: Stipa columbiana var. nelsonii, Stipa nelsonii ssp. nelsonii, Stipa nelsonii var. nelsonii, Stipa occidentalis var. nelsonii, Stipa williamsii) - Columbia Needlegrass, Nelson's Needlegrass: Achnatherum nelsonii ssp. nelsonii (Synonyms: Stipa columbiana var. nelsonii, Stipa nelsonii ssp. nelsonii, Stipa nelsonii var. nelsonii, Stipa occidentalis var. nelsonii, Stipa williamsii) - Columbia Needlegrass, Nelson's Needlegrass: Achnatherum nelsonii ssp. nelsonii (Synonyms: Stipa columbiana var. nelsonii, Stipa nelsonii ssp. nelsonii, Stipa nelsonii var. nelsonii, Stipa occidentalis var. nelsonii, Stipa williamsii)

What may be one of the two subspecies of Nelson's needlegrass as seen atop Sugarloaf Mountain, Wallowa-Whitman National Forest..........August 13, 2018.

Columbia Needlegrass, Nelson's Needlegrass: Achnatherum nelsonii ssp. nelsonii (Synonyms: Stipa columbiana var. nelsonii, Stipa nelsonii ssp. nelsonii, Stipa nelsonii var. nelsonii, Stipa occidentalis var. nelsonii, Stipa williamsii) - Columbia Needlegrass, Nelson's Needlegrass: Achnatherum nelsonii ssp. nelsonii (Synonyms: Stipa columbiana var. nelsonii, Stipa nelsonii ssp. nelsonii, Stipa nelsonii var. nelsonii, Stipa occidentalis var. nelsonii, Stipa williamsii) - Columbia Needlegrass, Nelson's Needlegrass: Achnatherum nelsonii ssp. nelsonii (Synonyms: Stipa columbiana var. nelsonii, Stipa nelsonii ssp. nelsonii, Stipa nelsonii var. nelsonii, Stipa occidentalis var. nelsonii, Stipa williamsii)

Two close-up views of the lemmas and awns of what may be Nelson's needlegrass? as seen along the Little Spokane River about three-quarters of a mile downstream from the Painted Rocks..........June 19, 2009.

Paul Slichter