perennial ryegrass USDA PLANTS Symbol: LOPE
U.S. Nativity: Exotic
Habit: Grass or Grasslike
Lolium perenne L.

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Taxonomic Rank: Liliopsida: Cyperales: Poaceae
Synonym(s): annual ryegrass, perennial rye grass, Italian ryegrass
Native Range: Europe (BAIL);

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


Plant(s); plant.
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

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

Flower(s);
Barry Rice, sarracenia.com, Bugwood.org
Additional Resolutions & Image Usage

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

Seed(s);
Lynn Sosnoskie, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Seed(s);
Lynn Sosnoskie, University of Georgia, Bugwood.org
Additional Resolutions & Image Usage

Seed(s);
Bruce Ackley, The Ohio State University, Bugwood.org
Additional Resolutions & Image Usage

Floret(s); Florets—dorsal view (left), ventral view (center), ventral view with apical floret.
D. Walters and C. Southwick, USDA, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s); Ventral view of caryopses showing linear hilum and some palea remnants.
D. Walters and C. Southwick, USDA, 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.

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U.S. National Parks where reported invasive:
Death Valley National Park (California)



Invasive Listing Sources:
Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
Pacific Northwest Exotic Pest Plant Council, 1998