Quackgrass

Scientific name: Elymus repens (L.) Gould subsp. repens

Synonyms: Agropyron repens (L.) Beauv.; Agropyron repens var. subulatum (Schreb.) Roemer & J.A. Schultes; Elytrigia repens (L.) Desv. ex B.D. Jackson; Elytrigia repens var. vaillantiana (Wulfen & Schreb.) Prokudin; Elytrigia vaillantiana (Wulfen & Schreb.) Beetle; Triticum repens L.; Triticum vaillantianum Wulfen & Schreb.

Common names: Quackgrass, medusa's head, Quackgrass rye, Quackgrass grass

Native To: Europe

Date of U.S. Introduction: 1600s

Images: Invasive.org and Google

Means of Introduction: Accidental, probably as a seed contaminant

Impact: Crowds out native species

Current U.S. Distribution:

• PLANTS Database map (see complete PLANTS Profile for county distribution and native status)
• Early Detection & Distribution Mapping System

U.S. States and U.S. National Parks Where Reported Invasive: Invasive Plant Atlas of the United States map

Management Plans: Plants

Selected Internet Resources:

• Federal Government
• State Government
• University/Academic
• International
• Organizations

Elymus repens
Integrated Taxonomic Information System.
Taxonomy

Elytrigia repens Article Citation Search - AGRICOLA Database
USDA. National Agricultural Library.
Research; Special Note: NAL Catalog Search (resources)

Elytrigia repens (L.) Desv. ex Nevski - Germplasm Resources Information Network (GRIN)
USDA. ARS. National Genetic Resources Program.
Taxonomy; Distribution; Legal Aspects

Quack Grass - Weed of the Week (Jul 9, 2005; PDF | 198 KB)
USDA. FS. Northeastern Area. Forest Health Protection. Identification/Description; Photographs; Introduction History; Impacts; Habitat; Distribution; Controls

Elytrigia repens - Fire Effects Information System (FEIS)
USDA. Forest Service. Rocky Mountain Station. Fire Sciences Laboratory.
Taxonomy; Identification/Description; Introduction History; Impacts; Life Cycle; Habitat; Distribution; Controls; Special Note: References

Plant profile for Elymus repens (L.) Gould - PLANTS Database
USDA. NRCS. National Plant Data Center.
Taxonomy; Identification/Description; Photographs; Illustrations; Distribution; Legal Aspects

Agropyron repens (L.) Beauv. - An Assessment of Exotic Plant Species of Rocky Mountain National Park
DOI. Northern Prairie Wildlife Research Center.
Life Cycle; Distribution; Controls

Agropyron repens - Species Abstracts of Highly Disruptive Exotic Plants at Pipestone National Monument
DOI. Northern Prairie Wildlife Research Center.
Identification/Description; Life Cycle; Distribution; Controls

Quackgrass - Encyloweedia
California Department of Food and Agriculture.
Identification/Description; Photographs; Habitat; Distribution; Dispersion; Controls

Quackgrass
Colorado Department of Agriculture. Noxious Weed Management Program.
Identification/Description; Photographs; Introduction History; Impacts; Distribution; Controls

Quackgrass - Official Control Program
Kansas Department of Agriculture. Plant Protection and Weed Control Program.
Identification/Description; Controls

Quackgrass
State of Utah. Weber County Weed Abatement.
Identification/Description; Photographs

Elymus repens (L.) Gould. - Invasive Plant Species of Alaska (PDF | 49 KB)
University of Alaska - Anchorage. Alaska Natural Heritage Program.
Identification/Description; Photographs; Impacts; Distribution; Special Note: References

Quackgrass - Invasive Plant Atlas of the United States
University of Georgia. Center for Invasive Species and Ecosystem Health.
Taxonomy; Identification/Description; Photographs; Introduction History; Distribution

Quackgrass - Ohio Perennial & Biennial Weed Guide
Ohio State University. Ohio Agricultural Research and Development Center.
Identification/Description; Photographs; Introduction History; Life Cycle; Habitat

Quackgrass - Virginia Tech Weed Identification Guide
Virginia Polytechnic Institute and State University. Plant Pathology, Physiology, and Weed Science.
Identification/Description; Photographs

Elytrigia repens
BioImages Virtual Field Guide.
Photographs

Quackgrass - Guide to Weeds in British Columbia
British Columbia Ministry of Agriculture Food and Fisheries (Canada).
Identification/Description; Photographs; Illustrations; Impacts; Life Cycle; Habitat; Distribution; Dispersion; Controls

Quackgrass
Colorado Weed Management Association.
Identification/Description; Photographs; Life Cycle; Habitat; Distribution; Dispersion