[The Grasses of the Columbia River Gorge of Oregon and Washington]

Needlegrass and Ricegrass of the Columbia River Gorge of Oregon and Washington

The Genus Achnatherum



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

Lemmon's Needlegrass: Achnatherum lemmonii ssp. lemmonii (Synonyms: Achnatherum lemmoni var. lemmonii, Stipa columbiana var. columbiana, Stipa lemmonii var. jonesii, Stipa lemmonii var. lemmonii) -

Pubescent Lemmon's Needlegrass, Pubescent Needlegrass: Achnatherum lemmonii ssp. pubescens (Synonyms: Achnatherum lemmonii var. pubescens, Stipa lemmonii var. pubescens) -

Western Needlegrass: Achnatherum occidentale ssp. occidentale (Synonym: Stipa occidentalis var. occidentalis) -

Thurber's Needlegrass: Achnatherum thurberianum (Synoym: Stipa thurberiana) -

Needle and Thread: Hesperostipa comata ssp. comata (Synonyms: Hesperostipa comata var. comata, Stipa comata, Stipa comata var. comata, Stipa comata ssp. intonsa) -

Paul Slichter E-mail