timothy USDA PLANTS Symbol: PHPR3
U.S. Nativity: Exotic
Habit: Grass or Grasslike Crops
Phleum pratense L.

Jump to: Images | Distribution Maps | Sources
Taxonomic Rank: Liliopsida: Cyperales: Poaceae
Synonym(s): common timothy
Native Range: Eurasia ()

Appearance
Phleum pratense is a perennial bunchgrass, growing 2-3.5 ft. (0.61-1.1 m) tall, with a swollen or bulblike base, without rhizomes. It starts growth in early spring.
Foliage
Glabrous, distinctly veined on blade and sheath; blades flat to somewhat keeled, 4-8 in. (10.2-20.3 cm) long, up to 0.38 in. (0.95 cm) wide, tapering toward the tip, with midrib prominent on upper surface; leaves rolled in buds.
Flowers
The flowers occur from May to August. White little petals appears and the flower head is 2.8-5.9 in. (7-15 cm) long.
Fruit
The seeds are dense, cylindrical, symmetrical spike-like panicle, 2-5 in. (5-12.7 cm) long. The seeds have little hairs on them.
Ecological Threat
Phleum pratense will over take roadsides and abandoned fields but it requires larges amounts of nutrients from the soil.

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


Flower(s);
Ohio State Weed Lab , The Ohio State University, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Tom Heutte, USDA Forest Service, Bugwood.org
Additional Resolutions & Image Usage

Feature(s);
Ohio State Weed Lab , The Ohio State University, Bugwood.org
Additional Resolutions & Image Usage

Feature(s); ligule
Ohio State Weed Lab , The Ohio State University, Bugwood.org
Additional Resolutions & Image Usage

Plant(s);
Tom Heutte, USDA Forest Service, Bugwood.org
Additional Resolutions & Image Usage

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

Plant(s); In flower
Ohio State Weed Lab , The Ohio State University, Bugwood.org
Additional Resolutions & Image Usage

Root(s);
Ohio State Weed Lab , The Ohio State University, 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.

U.S. National Parks where reported invasive:
Antietam National Battlefield (Maryland)
Badlands National Park (South Dakota)
Colonial National Historical Park (Virginia)
Grand Canyon National Park (Arizona)
Yellowstone National Park (Wyoming)



Invasive Listing Sources:
California Invasive Plant Council
City of Ann Arbor Michigan Parks and Recreation
Faith Campbell, 1998
Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
Mid-Atlantic Exotic Pest Plant Council, 2005
Native Plant Society of Oregon, 2008
Pacific Northwest Exotic Pest Plant Council, 1998
Virginia Invasive Plant Species List