oatgrass, trisetum
4 species
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Common name
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Trisetum canescenstall false oat
Origin: Native
Flowers: May - July
Growth Duration: perennial
Trisetum cernuumnodding Trisetum
Origin: Native
Trisetum flavescensyellow false oat
Origin: Introduced
Growth Duration: perennial
Trisetum spicatumnarrow false oat, spike trisetum
Distribution: Occurring in the mountainous areas on both sides of the Cascades crest throughout Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, further east to the Great Lakes region and eastern North America.
Habitat: Montane forests to alpine slopes in rocky, dry or moist areas.
Origin: Native
Flowers: June-September
Growth Duration: perennial