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How to Manage Pests

Identification: Weed Photo Gallery

Annual bluegrass

Scientific name: Poa annua (Grass Family: Poaceae)

Life stages of Annual bluegrass top picture bottom left picture bottom right picture

Click on image to enlarge

DESCRIPTION:
Annual bluegrass is a low-growing, cool-season grass which dies early in the summer when the top layer of soil dries out. It can easily be distinguished from other grasses by its typical leaf tip which is shaped like the bow of a boat. The leaf blade is often crinkled at the midsection. Annual bluegrass has a membranous ligule that is rounded with a slightly pointed tip. The mature plant grows as dense, low-spreading tufts, 3 to 12 inches (8 - 30 cm) tall, and often roots at the lower nodes.

See UC IPM's Annual Bluegrass Pest Note for more information.

Grass ID illustration.


Statewide IPM Program, Agriculture and Natural Resources, University of California
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For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See How to manage pests, or in the U.S., contact your local Cooperative Extension office for assistance. /PMG/WEEDS/annual_bluegrass.html revised: November 17, 2008. Contact webmaster.