| Documentation |
State |
Type |
| Abrams, L. 1960. An illustrated flora of the Pacific States. Stanford University Press, Stanford. |
CA, OR |
Literature |
| California Native Plant Society. Inventory of rare and endangered plants. |
CA |
Literature |
| Halliday, Glenn. Personal communication. |
OR |
Literature |
| Hickman, J.C. (ed.). 1993. The Jepson manual. University of California Press, Berkeley. |
CA |
Literature |
| Hitchcock, C.L. 1957. A study of the perennial species of Sidalcea. University of Washington Publications Biology 18(1). |
CA |
Literature |
| Oregon Flora Project species list; species noted on herbarium specimens. Unpublished and undated. |
OR |
Literature |
| Peck, M.E. 1961. A manual of the higher plants of Oregon, 2nd ed. Oregon State University Press, Corvallis. |
OR |
Literature |
| Specimen Management System for California Herbaria (SMASCH). |
CA |
Literature |
| Specimen at Oregon Natural Heritage Information Center, Portland, Oregon. |
OR |
Specimen |
| Straw, R. Jackson and Josephine County checklist. Unpublished and undated. |
OR |
Literature |
| WTU. Specimen at University of Washington, Seattle, Washington. |
WA |
Specimen |
| Washinton Natural Heritage Program. |
WA |
Literature |
| Wilken, Dieter. Personal communication. |
CA |
Literature |
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