Kentucky bluegrass USDA PLANTS Symbol: POPR
U.S. Nativity: Native
Habit: Grass or Grasslike
Poa pratensis L.

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Taxonomic Rank: Liliopsida: Cyperales: Poaceae

Appearance
Poa pratensis, commonly known as Kentucky Bluegrass or Common Meadow-grass, is a perennial species of grass. A long-lived sodgrass with rhizomes, growing 0.5-3 ft. (0.2-0.9 m) tall.
Foliage
Mostly basal, nearly glabrous; blades V-shaped, narrow, 1-7 in. (2.5-17.8 cm) long, with boat-shaped tips and two prominent veins along the center of the upper surface of the leaf which appear as miniature railroad tracks.
Flowers
The flower is its dense seed head. It flowers from May-July.
Fruit
Open, spreading, pyramidal panicle, 2-8 in. (5.1-20.3 cm) long, with panicle branches whorled in groups of 3 to 5; spikelets contain 3 to 5 florets; lemmas awnless but cobwebby-hairy at base.
Ecological Threat
Poa pratensis grows in lawns, roadsides and ditches. It is native to Europe, Asia, North America, and northern Africa.

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at Invasive.org


Flower(s); voucher specimen of inflorescence
Dave Powell, USDA Forest Service (retired), Bugwood.org
Additional Resolutions & Image Usage

Plant(s); whole plants in forest undergrowth
Dave Powell, USDA Forest Service (retired), Bugwood.org
Additional Resolutions & Image Usage

Plant(s); voucher specimen of whole plant
Dave Powell, USDA Forest Service (retired), Bugwood.org
Additional Resolutions & Image Usage

Plant(s);
John D. Byrd, Mississippi State University, Bugwood.org
Additional Resolutions & Image Usage

Plant(s);
Steve Dewey, Utah State University, Bugwood.org
Additional Resolutions & Image Usage

Seedling(s);
Steve Dewey, Utah State University, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); inflorescence and spikelets at flowering.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); inflorescence at fruiting stage.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Stem(s); collar and sheath.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); inflorescence and spikelets at flowering.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.


Invasive Listing Sources:
California Invasive Plant Council
Kentucky Exotic Pest Plant Council