| Letharia vulpina |
Cheyenne Dye, Yellow Boiled in water and used as a yellow dye for porcupine quills. Hart, Jeffrey A., 1981, The Ethnobotany of the Northern Cheyenne Indians of Montana, Journal of Ethnopharmacology 4:1-55, page 3 |
| Letharia vulpina |
Karok Dye, Unspecified Used as a dye for porcupine quills. Baker, Marc A., 1981, The Ethnobotany of the Yurok, Tolowa and Karok Indians of Northwest California, Humboldt State University, M.A. Thesis, page 34 |
| Letharia vulpina |
Oweekeno Dye, Yellow Thalli used to make a yellow dye. Compton, Brian Douglas, 1993, Upper North Wakashan and Southern Tsimshian Ethnobotany: The Knowledge and Usage of Plants..., Ph.D. Dissertation, University of British Columbia, page 49 |
| Letharia vulpina |
Yurok Dye, Unspecified Used as a dye for porcupine quills. Baker, Marc A., 1981, The Ethnobotany of the Yurok, Tolowa and Karok Indians of Northwest California, Humboldt State University, M.A. Thesis, page 34 |