
1) Beard lichen 2) Fungus genus 3) Genus usnea 4) Lichen 5) Lichens
Found on
https://www.crosswordclues.com/clue/usnea

Usnea is the generic and scientific name for several species of fruticose lichen in the family Parmeliaceae, that generally grow hanging from tree branches, resembling grey or greenish hair. It is sometimes referred to commonly as Old Man`s Beard, Beard Lichen, Tree`s Dandruff, Woman`s Long Hair, or Tree Moss. It should not be confused with Oak......
Found on
http://en.wikipedia.org/wiki/Usnea

• (n.) A genus of lichens, most of the species of which have long, gray, pendulous, and finely branched fronds. Usnea barbata is the common bearded lichen which grows on branches of trees in northern forests.
Found on
http://thinkexist.com/dictionary/meaning/usnea/

Usnea is a genus of gymnocarpous parmeliaceous lichens, with subterminal pelate apothecia, usually of a grey colour, found hanging on trees, and popularly known as tree-mosses or beard-mosses.
Found on
http://www.probertencyclopaedia.com/browse/BU.HTM

[
n] - widely distributed lichens usually having a grayish or yellow pendulous freely branched thallus
Found on
http://www.webdictionary.co.uk/definition.php?query=Usnea
genus Usnea noun widely distributed lichens usually having a greyish or yellow pendulous freely branched thallus
Found on
https://www.encyclo.co.uk/local/20974

any pale-green or gray, mosslike lichen of the genus Usnea, common on rocks and trees.
Found on
https://www.infoplease.com/dictionary/usnea
No exact match found.