BugwoodWiki Article

Kentucky bluegrass
Poa pratensis L.

Overview

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.

Resources

Selected Images


1214051
1214051

Kentucky bluegrass
Poa pratensis
Flower(s)
Dave Powell
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1213066

Kentucky bluegrass
Poa pratensis
Plant(s)
Dave Powell
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1214052

Kentucky bluegrass
Poa pratensis
Plant(s)
Dave Powell
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1391292

Kentucky bluegrass
Poa pratensis
Plant(s)
John D. Byrd
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1459076

Kentucky bluegrass
Poa pratensis
Plant(s)
Steve Dewey
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1459078

Kentucky bluegrass
Poa pratensis
Seedling(s)
Steve Dewey
5386242
5386242

Kentucky bluegrass
Poa pratensis
Flower(s)
Joseph M. DiTomaso
5386243
5386243

Kentucky bluegrass
Poa pratensis
Flower(s)
Joseph M. DiTomaso
5386245
5386245

Kentucky bluegrass
Poa pratensis
Stem(s)
Joseph M. DiTomaso
5386257
5386257

Kentucky bluegrass
Poa pratensis
Flower(s)
Joseph M. DiTomaso

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Most Troublesome / Most Common Agricultural Weed List
This map identifies those states that consider this species either most troublesome or most common in at least one commodity. For more information, visit the MTMC project page.

State Regulated List
Legend
   No Data for this state
   Troublesome or Common weed in one or more crops

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae
Genus: Poa

Other System Links

Plants: POPR
Bayer: POAPR
GRIN: 28996
ITIS: 41088
NPDN Pest: PCACKBD
NPDN Host: 22030

Categories

Category: Grass or Grasslike