Bible Dictionaries
Usnea

Webster's Dictionary

(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.

Bibliography Information
Webster, Noah. Entry for 'Usnea'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​u/usnea.html. 1828.