Danthonia
heathgrass, oatgrass
Synonyms:
Sieglingia [HC]
5 species
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Danthonia californica – California oatgrass
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, grassy meadows to rocky ridges, from coastal prairies to mid-elevations in the mountains, often with ponderosa pine.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Open, grassy meadows to rocky ridges, from coastal prairies to mid-elevations in the mountains, often with ponderosa pine.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Danthonia decumbens – common heath-grass, mountain heath-grass
Distribution: Occurring west of the Cascades crest in southwestern Washington; southwestern British Columbia to California; also in northeastern Canada.
Habitat: Marshy margins, dunes, dry meadows, damp, disturbed ground.
Origin: Introduced from Europe
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in southwestern Washington; southwestern British Columbia to California; also in northeastern Canada.
Habitat: Marshy margins, dunes, dry meadows, damp, disturbed ground.
Origin: Introduced from Europe
Flowers: July-September
Growth Duration: Perennial
Danthonia intermedia – timber oatgrass
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and eastern Canada; also in eastern Russia.
Habitat: Dry, mesic or wet meadows, peatlands, rocky slopes, and talus, from the lowlands to alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and eastern Canada; also in eastern Russia.
Habitat: Dry, mesic or wet meadows, peatlands, rocky slopes, and talus, from the lowlands to alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Danthonia spicata – poverty oatgrass
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon, east to Newfoundland and eastern United States.
Habitat: Sandy to rocky soil in dry woods and fairly dry meadows.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon, east to Newfoundland and eastern United States.
Habitat: Sandy to rocky soil in dry woods and fairly dry meadows.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Danthonia unispicata – few-flower oatgrass, one-spike oatgrass
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the northern Rocky Mountains and northern Great Plains.
Habitat: Dry to occasionally moist prairies, foothills, and open parks and ridges in mountain forests.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the northern Rocky Mountains and northern Great Plains.
Habitat: Dry to occasionally moist prairies, foothills, and open parks and ridges in mountain forests.
Origin: Native
Flowers: June-July
Growth Duration: Perennial
