Wolf lichen (Letharia vulpina) grows on wood, Firehole Lake Drive, Yellowstone National Park, Wyoming, USA

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Wolf lichen, Letharia vulpina, is poisonous. Achomawi in Northern California used it to make poisonous arrowheads. Indigenous peoples in western North America for making dye also used it. Some groups made paint from it. The Okanagan-Colville prepared a weak tea from it to treat internal problems, and it was a Blackfoot remedy for stomach disorders. Information from:

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Size: 5120px × 3401px
Location: Firehole Lake Drive, Yellowstone National Park, Wyoming, USA, North America
Photo credit: © Krystyna Szulecka / Alamy / Afripics
License: Licensed
Model Released: No

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