Resources
- Weed Field Guide - USDA Forest Service
- Element Stewardship Abstract - The Nature Conservancy
- Know Your Knapweeds - North Dakota State University
- Program Aid - USDA APHIS PPQ
Representative Images
0024090 diffuse knapweed Centaurea diffusa Plant(s) Sara Rosenthal |
1350049 diffuse knapweed Centaurea diffusa Plant(s) Cindy Roche |
1459254 diffuse knapweed Centaurea diffusa Flower(s) Steve Dewey |
1459257 diffuse knapweed Centaurea diffusa Flower(s) Steve Dewey |
1148105 diffuse knapweed Centaurea diffusa Flower(s) USDA APHIS PPQ Archive |
1350078 diffuse knapweed Centaurea diffusa Flower(s) Cindy Roche |
5358643 diffuse knapweed Centaurea diffusa Flower(s) L.L. Berry |
5374333 diffuse knapweed Centaurea diffusa Seedling(s) Joseph M. DiTomaso |
1459255 diffuse knapweed Centaurea diffusa Plant(s) Steve Dewey |
Maps
EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
Alternative content
State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org
Alternative content
Invasive Listing Sources
- Arizona Noxious Weeds
- California Invasive Plant Council
- California Noxious Weeds
- Colorado Noxious Weeds
- Faith Campbell, 1998
- Idaho 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.
- Montana Noxious Weeds
- Nebraska Noxious Weeds
- Nevada Noxious Weeds
- New Hampshire Restricted Invasive Species
- New Mexico Noxious Weeds
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- North Dakota Noxious Weeds
- Oregon Noxious Weeds
- Pacific Northwest Exotic Pest Plant Council, 1998
- South Dakota Noxious Weeds
- Utah Noxious Weeds
- Washington Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Wyoming Noxious Weeds
Taxonomic Rank
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Asteridae |
| Order: Asterales |
| Family: Asteraceae |
| Genus: Centaurea |
Synonyms and Other Names
Other Common Names:
white knapweed
Related Scientific Names:
| Acosta diffusa Lam. | (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. |
Invasive.org is a joint project of the Center for Invasive Species and Ecosystem Health and USDA APHIS PPQ, with additional support from USDA National Institute of Food and Agriculture and USDA Forest Service. The University of Georgia - Warnell School of Forestry and Natural Resources and College of Agricultural and Environmental Sciences |
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Last updated on Tuesday, May 04, 2010 at 02:41 PM