KnowraUsneaLinked fromLinked fromThe 4 pages that link to Usnea, each with the reason it gives.All 4Broader topic 4LichenBroader topic: Its hanging forms make lichen growth conspicuous on trees and shrubs.Fruticose lichenBroader topic: Its pendent branches make the shrubby growth form especially recognizable.ParmeliaceaeBroader topic: Its beardlike thalli exemplify the family’s fruticose growth form.LecanoralesBroader topic: Its beard-like thalli make the order's shrubby growth form easy to recognize.