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How to Manage Pests

Identification: Weed Photo Gallery

Foxtails

Scientific name: Setaria spp. (Family Poaceae)

Life stages of Foxtails top picture middle left picture middle right picture bottom left picture bottom right picture

Click on image to enlarge

DESCRIPTION:
Foxtails are summer annual grasses and are common in northern California growing areas. Mature foxtail plants are 1 to 3 feet (30 - 90 cm) tall, with branching and some spreading at their bases. Leaf blades are 4 to 15 inches (10 - 37.5 cm) long, and most have a spiral twist. Flower heads are dense spikes with yellow to reddish bristles or green to purplish bristles, depending on species. The ligule of yellow foxtail is a fringe of hairs and there are no auricles. There are no hairs on the leaf sheath margin below the collar as on green foxtail. If the leaf sheath of green foxtail is pulled away from the stem, you can see fine hairs on the leaf sheath below the collar region and the leaf blades are flat and lack hairs.

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/foxtails.html revised: March 11, 2008. Contact webmaster.