Southwest Exotic Plant Information Clearinghouse (SWEPIC)
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Centaurea solstitialis
The Southwest Exotic Plant Information Clearinghouse was developed a cooperative effort between the U.S. Geological Survey, the National Park Service, and Northern Arizona University. The site is no longer maintained; however, you will find links to the last update of the Southwest Exotic Plant Mapping Program (2007), descriptions and findings of the Arizona Wildlands Invasive Plant Working Group (2005), and the most recent version of the Alien Plant Ranking System (7.1).
- Weed Species Weed species profiles
- Weed Lists Noxious and other weed lists for the Southwest
- SWEMP The Southwest Exotic Plant Mapping Program
- APRS The Alien Plant Ranking System
- AZ-WIP Arizona Wildlands Invasive Plants
Please contact Kathryn Thomas regarding any questions.
