usnea

We camped in a boggy hollow on a bluff among scraggy, usnea-bearded spruces.

Usnea barbata is collected from trees in Pennsylvania, and used for an orange colour for yarn.

It resembles carbonized horse hair and was called "horse hair usnea" by old Dillenius.

The larger ones covered with lichens,—often hung with the long gray Usnea.

It was in a section of Mississippi where there was no Usnea growing within 60 miles.