[Needlegrass and Ricegrass: The Genus Achnatherum in the Columbia River Gorge of Oregon and Washington]

Indian Ricegrass

Achnatherum hymenoides

Synonyms: Oryzopsis cuspidata, Oryzopsis hymenoides

Indian Ricegrass: Achnatherum hymenoides (Synonyms: Oryzopsis cuspidata, Oryzopsis hymenoides)

A close-up within the inflorescence of Indian ricegrass as seen in sandy soils at MP 115.5 along Washington Highway SR 14 in the Columbia River Gorge...........May 8, 2009.

Indian Ricegrass: Achnatherum hymenoides (Synonyms: Oryzopsis cuspidata, Oryzopsis hymenoides) - Indian Ricegrass: Achnatherum hymenoides (Synonyms: Oryzopsis cuspidata, Oryzopsis hymenoides)

Indian ricegrass as seen in sandy soils at MP 115.5 along Washington Highway SR 14 in the Columbia River Gorge..........May 8, 2009. The open panicle can clearly be seen in this as well as the following photo.

Inflorescence of Indian Ricegrass: Achnatherum hymenoides (Synonyms: Oryzopsis cuspidata, Oryzopsis hymenoides)

Indian Ricegrass: Achnatherum hymenoides (Synonyms: Oryzopsis cuspidata, Oryzopsis hymenoides)

Indian ricegrass as seen in sandy and gravelly soils along Washington Highway SR 14 in the Columbia River Gorge to the east of Roosevelt, WA...........May 16, 2011. The open panicle can clearly be seen in this photo.

Indian Ricegrass: Achnatherum hymenoides (Synonyms: Oryzopsis cuspidata, Oryzopsis hymenoides)

Indian ricegrass growing on a sandy bank above Washington Highway 14 immediately west of Rock Creek, Klickitat County, WA...........May 17, 2014.

Paul Slichter