Calamagrostis
Synonyms:
Greeneochloa
8 species
4 subspecies and varieties
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Calamagrostis canadensisbluejoint reedgrass
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and eastern North America.
Habitat: Wet places, sea level to mid-elevations in the mountains
Origin: Native
Flowers: June-August
Growth Duration: Perennial
var. canadensis – bluejoint reedgrass
var. langsdorffii – Langsdorff's jointed reedgrass
Calamagrostis howelliiHowell's reedgrass
Distribution: Occurring in the Columbia River Gorge in Washington; south-central Washington to adjacent Oregon.
Habitat: Rocky banks and crevices.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Calamagrostis nutkaensisNootka reedgrass
Distribution: Occurring west of the Cascades crest in Washington along the coast; Alaska to California.
Habitat: In coastal areas in wetlands, forest openings, salt- and freshwater beaches and dunes, and cliffs.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Calamagrostis purpurascenspurple reedgrass
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, and east across the northern Great Plains to the Atlantic Coast.
Habitat: Moist subalpine meadows and stream banks, often in partial shade.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Calamagrostis rubescenspinegrass
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana and Colorado
Habitat: Dry to moist areas, open sagebrush flats to timbered slopes, moderate to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Calamagrostis strictaslimstem reedgrass
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Atlantic Coast.
Habitat: Wetlands.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
ssp. inexpansa – narrow-spiked reedgrass
ssp. stricta – narrow-spiked reedgrass
Calamagrostis tacomensisRainier reedgrass
Distribution: Occurring in the Olympic Mountains and Cascade Range in Washington. Washington to northern Oregon.
Habitat: Montane to alpine meadows, seeps, and rocky slopes.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Calamagrostis tweedyiCascade reedgrass
Distribution: Occurring chiefly east of the Cascades crest in central Washington; central Washington to southern Oregon, east to Idaho and Montana.
Habitat: Moist meadows and subalpine slopes, usually in forest edge or understory.
Origin: Native
Flowers: June-August
Growth Duration: Perennial