[Grasses East of the Cascade Mountains of Oregon and Washington]

Tall Oatgrass

Arrhenatherum elatius ssp. elatius

Synonym: Arrhenatherum elatius var. elatius

Inflorescence of Tall Oatgrass: Arrhenatherum elatius ssp. elatius (Synonym: Arrhenatherum elatius var. elatius) - Tall Oatgrass: Arrhenatherum elatius ssp. elatius (Synonym: Arrhenatherum elatius var. elatius)

Tall oatgrass as seen west of Marsh Cutoff Road in the Memaloose area of the central Columbia River Gorge.......November 9, 2011.

Tall Oatgrass: Arrhenatherum elatius ssp. elatius (Synonym: Arrhenatherum elatius var. elatius)

Spikelet of tall oatgrass as seen west of Marsh Cutoff Road in the Memaloose area of the central Columbia River Gorge.............November 9, 2011.
Paul Slichter