Usnea

n.

1.

(Bot.) 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.

Noun

1.

Usnea - widely distributed lichens usually having a grayish or yellow pendulous freely branched thallus Synonyms: genus Usnea

beard lichen, beard moss, family Usneaceae, fungus genus, genus Usnea, Usnea barbata, Usneaceae