beard moss
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/af/Usnea_lapponica_Vain.jpg/220px-Usnea_lapponica_Vain.jpg)
Noun
[edit]beard moss (usually uncountable, plural beard mosses)
- Any of several lichens, of the genus Usnea, that generally grow hanging from tree branches, resembling grey or greenish hair.