Canada thistle
Cirsium arvense (L.) Scop.
Resources
- Fact Sheet - Pennsylvania Dept. of Conservation and Natural Resources
- Biological Control of Invasive Plants in the Eastern United States - USDA Forest Service
- Weeds Gone Wild: Alien Plant Invaders of Natural Areas - Plant Conservation Alliance
- Element Stewardship Abstract - The Nature Conservancy
- Invasive Plant Atlas of New England - University of Connecticut
- Fire Effects Information System - USDA Forest Service
- Federal Noxious Weed Disseminules of the U.S. - USDA-APHIS
- Weed of the Week - USDA Forest Service
- Weed Field Guide - USDA Forest Service
- Plant Invaders of Mid-Atlantic Natural Areas - National Park Service and U.S. Fish and Wildlife Service
Representative Images(View more at Forestry Images)
 1459761 Canada thistle Cirsium arvense Flower(s) Steve Dewey |
 1358360 Canada thistle Cirsium arvense Flower(s) Mary Ellen (Mel) Harte |
 1459758 Canada thistle Cirsium arvense Flower(s) Steve Dewey |
 5270081 Canada thistle Cirsium arvense Foliage Leslie J. Mehrhoff |
 1358355 Canada thistle Cirsium arvense Foliage Mary Ellen (Mel) Harte |
 1196009 Canada thistle Cirsium arvense Infestation UAF Cooperative Extension Archive |
 1196013 Canada thistle Cirsium arvense Flower(s) Michael Shephard |
 1196252 Canada thistle Cirsium arvense Plant(s) UAF Cooperative Extension Archive |
 1237095 Canada thistle Cirsium arvense Plant(s) Dan Tenaglia |
 1265114 Canada thistle Cirsium arvense Plant(s) Peggy Greb |
 1334022 Canada thistle Cirsium arvense Flower(s) Chris Evans |
 1358350 Canada thistle Cirsium arvense Plant(s) Mary Ellen (Mel) Harte |
 1358358 Canada thistle Cirsium arvense Plant(s) Mary Ellen (Mel) Harte |
 1459754 Canada thistle Cirsium arvense Infestation Steve Dewey |
 1929056 Canada thistle Cirsium arvense Infestation Alec McClay |
 5307004 Canada thistle Cirsium arvense Plant(s) USDA PLANTS Database |
 5307006 Canada thistle Cirsium arvense Plant(s) USDA PLANTS Database |
Invasive Listing Sources
- Alabama Invasive Plant Council
- Alaska Noxious Weeds
- Arizona Noxious Weeds
- California Invasive Plant Council
- California Noxious Weeds
- City of Ann Arbor Michigan Parks and Recreation
- Colorado Noxious Weeds
- Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, 1994.
- Connecticut Invasive Plant List
- Connecticut Invasive Plant Working Group
- Delaware Natural Resources and Environmental Control, 2004
- Delaware Noxious Weeds
- Faith Campbell, 1998
- Forest Service-Alaska, 2004
- Hoffman, R. & K. Kearns, Eds. 1997. Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources, Bureau of Endangered Resources. Madison, Wisconsin. 102pp.
- Idaho Noxious Weeds
- Illinois Invasive Plant List
- Illinois Noxious Weeds
- Indiana Native Plant and Wildflower Society
- Indiana Noxious Weeds
- Iowa Noxious Weeds
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Kansas Noxious Weeds
- Kentucky Exotic Pest Plant Council - Significant Threat
- Kentucky Noxious Weeds
- Maryland Cooperative Extension Service. 2003. Invasive Plant Control in Maryland. Home and Garden Information Center, Home and Garden Mimeo HG88. 4 pp.
- Maryland Department of Natural Resources, 1994
- Maryland Noxious Weeds
- Michigan Noxious Weeds
- Mid-Atlantic Exotic Pest Plant Council, 2005
- Minnesota Noxious Weeds
- Missouri Department of Conservation,
- Missouri Noxious Weeds
- Montana Noxious Weeds
- National Wildlife Refuge Association, Silent Invasion: A Call to Action from the National Wildlife Refuge Association, 2002. Washington DC. 17 pp.
- Native Plant Society of Oregon, 2008
- Nebraska Noxious Weeds
- Nevada Noxious Weeds
- New Hampshire Restricted Invasive Species
- New Jersey Department of Agriculture, Division of Plant Industry, 2004
- New Mexico Noxious Weeds
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- North Carolina Noxious Weeds - Class B
- North Dakota Noxious Weeds
- Ohio Noxious Weeds
- Oklahoma Noxious Weeds
- Oregon Noxious Weeds
- Pacific Northwest Exotic Pest Plant Council, 1998
- Pennsylvania Noxious Weeds
- Rhode Island Natural History Society,
- South Dakota Noxious Weeds
- Tennessee Exotic Pest Plant Council - Significant Threat
- Utah Noxious Weeds
- Virginia Department of Conservation and Recreation, 2009
- Washington Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Wisconsin Noxious Weeds
- Wisconsin's Invasive Species Identification, Classification and Control Rule
- Wyoming Noxious Weeds
Taxonomic Rank
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Asteridae |
| Order: Asterales |
| Family: Asteraceae |
| Genus: Cirsium |
Other System Links
Plants: CIAR4Bayer: CIRAR
GRIN: 100755
ITIS: 36335
NPDN Pest: PBFAWBB
NPDN Host: 31702
Synonyms and Other Names
Other Common Names:
Californian thistle, creeping thistle, field thistle
| Related Scientific Names: | |
| Breea arvensis (L.) Scop. | (Synonym) |
| Related Scientific Names: | |
| Breea incana (L.) Scop. | (Synonym) |
| Related Scientific Names: | |
| Carduus arvensis (L.) Scop. | (Synonym) |
| Related Scientific Names: | |
| Cirsium incanum (L.) Scop. | (Synonym) |
| Related Scientific Names: | |
| Cirsium setosum (L.) Scop. | (Synonym) |
| Related Scientific Names: | |
| Serratula arvensis (L.) Scop. | (Synonym) |
| Common Name Reference: | USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA. |
| Scientific Name Reference: | USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA. |
