Native Plant Society of BC. North American Native Plant Society. Native Plant Network. National Seed Labs - USDA. Lady Bird Johnson Wildflower - The U of Texas. E-Flora BC. Alpine Garden Club BC. Alberta Native Plants and Wildflowers. Alberta Native Plant Council. Wolf Lichen Wolf lichen on a dead Engelmann spruce in Banff National Park (winter 2014) The bright green-yellow of wolf lichen (Letharia vulpina (L.)
Hue) virtually leaps out against the dark green stand of a dark green Engelemann spruce winterscape in Banff National Park. Lichens are composite organisms that rely on symbiotic relationships with other species to acquire nutrients for survival. The dominant organism of lichen is fungus, which cannot produce its own food.