Usnea
33 species
1 subspecies and varieties
1 subspecies and varieties
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Usnea longissima
Description: Thallus pendent, extremely long (to 9\\', rarely to 15\\'), with slender, almost undivided branches. Side branches and fibrils perpendicular. Pollution-sensitive.
Distribution: West of Cascades crest in Washington; Alaska to northern California, New York, Vermont, New Hampshire, Maine; Ontario, Quebec.
Habitat: Open or lightly shaded forest, often near water.
Substrate: On trees of all kinds.
Description: Thallus pendent, extremely long (to 9\\', rarely to 15\\'), with slender, almost undivided branches. Side branches and fibrils perpendicular. Pollution-sensitive.
Distribution: West of Cascades crest in Washington; Alaska to northern California, New York, Vermont, New Hampshire, Maine; Ontario, Quebec.
Habitat: Open or lightly shaded forest, often near water.
Substrate: On trees of all kinds.
