Tree moss is a common name for several organisms and may refer to:
*''
Climacium'', a genus of mosses which resemble miniature trees
**''
Climacium dendroides'', a common species of ''Climacium''
*''
Evernia'', a genus of lichens which grow on trees
*''
Usnea
''Usnea'' is a genus of fruticose lichens in the large family Parmeliaceae. The genus, which currently contains roughly 130 species, was established by Michel Adanson in 1763. Species in the genus grow like leafless mini-shrubs or tassels anch ...
'', a genus of lichens which grow on trees
{{Fungus common name