wolf lichen letharia vulpina growing on the branches of a pine tree in yosemite national park, sierra nevada mountains,

abstract america background bark beautiful branches bright brightly california colored common conifers copy delicate dye europe european fungus green growing homeopathy letharia lichen medicine moss mountains national native natural nature nevada outdoors pacific pale parasite park pigment pine poisonous poultice sierra space states toxic tree united usa view vulpina western wolf yellow yosemite