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You are here: Home / Plants / Species Profiles / Houndstongue
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Houndstongue

HoundstongueScientific name: Cynoglossum officinale L. (ITIS)

Common names: Houndstongue, gypsy flower, rats and mice, dog bur

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Selected Resources

Native To: Eurasia (Kedzie-Webb and Sheley 2009)

Date of U.S. Introduction: First discovered in 1893 (Kedzie-Webb and Sheley 2009)

Means of Introduction: Introduced accidentally through contaminated seed (Kedzie-Webb and Sheley 2009)

Impact: Infests pasture and rangeland, where it is toxic to livestock (Kedzie-Webb and Sheley 2009)

Current U.S. Distribution:

Images:

Selected Resources:

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Council

Fact Sheet: Hound's Tongue (Jan 2014; PDF | 700 KB)
Alberta Invasive Plants Council (Canada).

Partnership

Invasive Plant Atlas of the United States - Houndstongue
University of Georgia. Center for Invasive Species and Ecosystem Health.

Invasive Species Compendium - Cynoglossum officinale
CAB International.

Global Invasive Species Database - Cynoglossum officinale (herb)
World Conservation Union. Invasive Species Specialist Group.

Government

Germplasm Resources Information Network (GRIN) - Cynoglossum officinale
USDA. ARS. National Genetic Resources Program.

Cynoglossum officinale - Fire Effects Information System (FEIS)
USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.

Ecology and Management of Houndstongue - Invasive Species Technical Note MT-8 (Jan 2007; PDF | 292 KB)
USDA. Natural Resources Conservation Service.

PLANTS Database - Gypsyflower
USDA. NRCS. National Plant Data Center.

Hound's-Tongue - Guide to Weeds in British Columbia
British Columbia Ministry of Agriculture, Food, and Fisheries (Canada).

State

Houndstongue - Best Management Practices Weed Profile (PDF | 219 KB)
Colorado State Parks.

Houndstongue Identification and Management (Aug 2008; PDF | 839 KB)
Colorado Department of Agriculture. Conservation Services Division.

Houndstongue (PDF | 2.04 MB)
Oregon Department of Agriculture. Plant Division. Noxious Weed Control.

Class B Noxious Weed: Houndstongue
Washington State Noxious Weed Control Board.

Houndstongue
King County (Washington). Noxious Weed Control Program.

Academic

Weed Control in Natural Areas in the Western United States: Houndstongue (2013; PDF | 278 KB)
University of California. Weed Research and Information Center.

Houndstongue: Identification, Biology and Integrated Management - MontGuide Fact Sheet (Aug 2009; PDF | 997 KB)
Montana State University. Extension Service.

Managing Houndstongue (PDF | 239 KB)
University of Nevada - Reno. Cooperative Extension.

Houndstongue Identification and Control (Jun 2013; PDF | 259 KB)
North Dakota State University. Extension Service.

Houndstongue - Common Weeds of the Yard and Garden (PDF | 757 KB)
Utah State University. Cooperative Extension.

Professional

Houndstongue
Colorado Weed Management Association.

Weed Identification - Houndstongue
Montana Weed Control Association.

Citations

Integrated Taxonomic Information System. Cynoglossum officinale. [Accessed Sep 10, 2014].

Kedzie-Webb, S. and R.L. Sheley. 2009. Houndstongue: Identification, Biology and Integrated Management (PDF | 997 KB) Montana State University Extension. MontGuide MT199709AG.

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Last Modified: May 06, 2015
 
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