Beard Lichen

Species recognized by Indian Ocean Species List, North Pacific Species List, South Pacific Species List, North Atlantic Species List, Delete- old US Species List, Norfolk Island Species List, R union Species List, Papua New Guinea Species List, Mexico Species List, Australia Species List, Brazil Species List, Canada Species List, and Wikidata

Species recognized by GBIF classification

Recognized by USDA PLANTS images

Species recognized by United States Species List and Wikimedia Commons

Doubtful according to GBIF classification (Possible variant of Usnea trichodea var. trichodea)

Doubtful according to GBIF classification

Doubtful according to GBIF classification

Doubtful according to GBIF classification

Doubtful according to GBIF classification

Doubtful according to GBIF classification