Providing Native Plant Diversity to the Willamette Valley Ecoregion

References

1. 1. Alverson E.

   2008. Personal communication. Eugene (OR): The Nature Conservancy. Willamette Valley Stewardship Ecologist.
2. 1. Habeck JR.

   1961. The original vegetation of the mid-Willamette Valley. Northwest Science 35:65–77.

   OpenUrl
3. 1. Johannessen CL,
   2. Davenport WA,
   3. Millet A,
   4. McWilliams S.

   1971. The vegetation of the Willamette Valley. Annals Association American Geographers 61:286–302.

   OpenUrl
4. 1. Kaye T.

   2008. Personal communication. Corvallis (OR): Institute for Applied Ecology. Executive Director.
5. 1. Smith S.

   2008. Personal communication. Corvallis (OR): US Fish and Wildlife Service. Private Lands Biologist.
6. 1. Towle JC.

   1982. Changing geography of Willamette Valley woodlands. Oregon Historical Quarterly 83:66–87.

   OpenUrl
7. 1. [USDA NRCS] USDA Natural Resources Conservation Service.

   2008. The PLANTS database. URL: http://plants.usda.gov (accessed 20 Jan 2008). Baton Rouge (LA): National Plant Data Center.
8. 1. [USFWS] US Fish and Wildlife Service.

   Unpublished. Draft Recovery Plan for Prairie Species of Western Oregon and Southwestern Washington. Portland (OR): US Fish and Wildlife Service.