wolf lichen

== English == === Noun === wolf lichen (plural wolf lichens) A bright yellow-green, shrubby, fruticose lichenized fungus of species Letharia vulpina (family Parmeliaceae). === References === Letharia vulpina on Wikipedia.Wikipedia Letharia vulpina on Wikispecies.Wikispecies Category:Letharia vulpina on Wikimedia Commons.Wikimedia Commons