| Documentation |
State |
Type |
| 1992. Madroño. |
OR |
Literature |
| 2000. CalFlora: Information on California plants for education, research and conservation. The CalFlora Database, Berkeley. |
CA |
Literature |
| Assorted authors. State noxious weed lists for 46 states. State agriculture or natural resource departments. |
|
Literature |
| California Department of Food and Agriculture. Pest ratings of noxious weed species and noxious weed seed (20 October 2003). California Department of Food and Agriculture, California. |
|
Literature |
| Clifton, G. Plumas County and Plumas National Forest flora (2001 Draft). Unpublished and undated. |
CA |
Literature |
| Haubrich, G. 2002. Noxious weed spreadsheet. Washington State Department of Agriculture, Olympia. |
WA |
Literature |
| Hickman, J.C. (ed.). 1993. The Jepson manual. University of California Press, Berkeley. |
CA |
Literature |
| Hrusa, G.F. 2003. Noxious weeds data. Unpublished. |
CA |
Literature |
| Old, Richard. Personal communication. |
WA |
Literature |
| Specimen Management System for California Herbaria (SMASCH). |
CA |
Literature |
| Washington Administrative Code. Noxious weed control, Chapter 16-752 (24 May 2006). State of Washington, Washington. |
|
Literature |
| Washington Administrative Code. State noxious weed list and schedule of monetary penalties, Chapter 16-750 (24 May 2006). State of Washington, Washington. |
|
Literature |
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