fresh complex lichen usnea exasperata is growth on the branch of the hill evergreen forest

background bark beard beautiful beauty biology botany branch bright closeup curtain delicate detail ecology evergreen exasperata forest frost fungus furry fuzz green growth hairy harmless lace leaf leaves lichen light material moss national nature nobody old outdoor parasite park parmeliaceae pattern plant psilotum scenery soft source texture tree triquetrum usnea vibrant woods