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How to Manage Pests

Identification: Weed Photo Gallery

Soft brome

Scientific name: Bromus hordeaceus (Grass Family: Poaceae)

Life stages of Soft brome top left picture top right picture bottom picture

Click on image to enlarge

DESCRIPTION:
Soft brome, also called soft chess, is a widely distributed cool season annual grass at low elevation areas in California, especially in open, disturbed areas. Mature plants are distinguished by dense, soft hairs on the sheaths. No auricles present. Membranous ligules. Compact spikelets form dense flowering heads with awns about 0.25 to 0.5 inch long. Plants are 4 inches to more than 2 feet (10 to > 60 cm) tall. Seed germination starts in fall. Young plants grow rapidly with available moisture and slow down through winter. Resuming rapid growth in spring, plants reach maturity in early summer. Other common bromegrasses in California agricultural situations include ripgut brome, which has long lacks bristles or has bristles, and rescuegrass, B. catharticus, which lacks bristles or has bristles no larger than 0.12 inch.

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/soft_brome.html revised: November 17, 2008. Contact webmaster.