Poa
bluegrass
32 species
17 subspecies and varieties
Show only taxa with photos
Order by:
Scientific name
Common name
Display as:
Poa alpinaalpine bluegrass
Origin: Native
ssp. alpina – alpine blue grass
Poa annuaannual blue grass
Distribution: Common weed throughout the Pacific Northwest.
Habitat: Lawns, gardens, roadsides, and waste ground to open woods.
Origin: Introduced
Flowers: March - August
Poa arcticaarctic bluegrass
Origin: Native
Poa bolanderiBolander's blue grass
Origin: Native
Flowers: July - August
Poa bulbosabulbous bluegrass
Distribution: Both sides of the Cascades in Washington; throughout most of western North America, more scattered in central and eastern North America.
Habitat: Disturbed areas from the coast to midmontane.
Origin: Introduced
Flowers: March-June
ssp. vivipara – bulbous blue grass
Poa compressaflat-stem blue grass
Distribution: Alaska east to Newfoundland, south to most of the United States; common in the Pacific Northwest.
Habitat: Waste ground, roadsides, and gardens to open woods and meadows, usually where moist.
Origin: Introduced
Flowers: June - August
Poa confiniscoastline blue grass
Distribution: VAncouver Island, British Columbia, south along the coast to San Francisco, California.
Habitat: Coastal sand dunes.
Origin: Native
Flowers: May - June
Poa curtifolialittle mountain blue grass
Origin: Native
Flowers: June - August
Poa cusickiiCusick's bluegrass
Distribution: British Columbia south in the Olympics and Cascades to California, east to Saskatchewan and Colorado.
Habitat: Sagebrush plains to alpine meadows and ridges.
Origin: Native
Flowers: June - August
ssp. cusickii – Cusick's bluegrass
ssp. epilis – skyline bluegrass
ssp. pallida – Cusick's bluegrass
ssp. purpurascens – Cusick's bluegrass
Poa fendlerianamuttongrass
Origin: Native
Flowers: May - August
ssp. longiligula – muttongrass
Poa glauca
Origin: Native
ssp. rupicola – timberline bluegrass
Poa howelliiHowell's blue grass
Origin: Native
Flowers: April - June
Poa infirmaweak bluegrass
Origin: Introduced
Poa interiorinterior bluegrass, woods blue grass
Origin: Native
Poa laxifloraloose-flower blue grass
Distribution: Southern Alaska south to the Olympic Peninsula of Washington and Multnomah, Clackamus and Benton Counties, Oregon.
Habitat: Moist woods to rocky, open slopes, from near sea level to lower elevations in the mountains.
Origin: Native
Flowers: June
Poa leibergiiLeiberg's blue grass
Origin: Native
Flowers: Late March - May
Poa leptocomamarsh blue grass
Origin: Native
Flowers: Late June - August
Poa lettermaniiLetterman's blue grass
Origin: Native
Flowers: August
Poa macranthasand-dune blue grass
Distribution: Southern Vancouver Island and the islands of Puget Sound, south along the coast to Mendocino County, California.
Habitat: Chiefly on sand dunes.
Origin: Native
Flowers: April - July
Poa marcidawithered blue grass
Origin: Native
Flowers: June - July
Poa ×multnomae
Origin: Native
Poa nemoraliswoodland bluegrass
Origin: Introduced
Flowers: May - August
Poa nervosaHooker's blue grass
Origin: Native
Flowers: April - August
Poa palustrisfowl blue grass
Distribution: Introduced and widely distributed through Alaska and Canada, south to northern California and Virginia.
Habitat: Sea level to open meadows and forested areas in the mountains, always where moist.
Origin: Introduced
Flowers: May - August
Poa paucispiculaAlaska blue grass
Origin: Native
Flowers: Late June - August
Poa pratensisKentucky bluegrass
Distribution: Throughout Washington; common throughout temperate world.
Habitat: Moist, distrurbed areas at from the coast to middle elevations.
Origin: Both native and introduced
Flowers: April - October
ssp. pratensis – Kentucky blue grass
Poa secunda
Distribution: Widely distributed throughout Washington; Alaska south to California, east to the Rocky Mountains.
Habitat: Grasslands and forest openings from sea-level to the alpine
Origin: Native
Flowers: April-July
ssp. juncifolia – alkali bluegrass, big bluegrass, Nevada bluegrass
ssp. secunda – curly blue grass
Poa stenanthanarrow-flowered bluegrass
Origin: Native
var. stenantha – narrow-flower blue grass
Poa suksdorfiiwestern blue grass
Origin: Native
Flowers: July - August
Poa trivialisrough-stalk blue grass
Origin: Introduced
Flowers: May - July
Poa unilateralissea-bluff bluegrass
Origin: Native
ssp. pachypholis – San Francisco blue grass
Poa wheeleriWheeler's blue grass
Origin: Native
Flowers: April - August