- 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.
- 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.
- 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.
- 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.
Esser, Lora L. 1993. Phleum pratense, Fire Effects Information System, U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory 
James A. Duke. 1983. Handbook of Energy Crops, Purdue University 
University of Alaska Anchorage, Alaska Natural Heritage Program 
University of California, Jepson Flora Project 
Flora of China, www.eFloras.org 
USDA NRCS PLANTS 
USDA ARS GRIN 
Images from Bugwood.org