Letharia vulpina “Wolf Lichen” on
Pinus ponderosa “Ponderosa Pine” Pinaceae

Mt. Sentinel, Lolo National Forest, MT
September 12, 2015
Robert Niese

Wolf lichen is a striking, extremely abundant lichen in our dry Ponderosa Pinelands here in the PNW. It’s electric yellow-green color comes from a compound produced by the fungus known as vulpinic acid. It is relatively toxic and in ancient Europe concentrated vulpinic acid was traditionally used as a poison for killing wolves (hence it’s common name). Here in the PNW, however, native peoples use the lichen as a dye for fabrics and baskets. You can learn how to make your own dyes from lichens like Letharia here.

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