Page author: Crow Vecchio
Usnea longissima

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.

Conservation Status: Recommended for listing, under review in Washington (WANHP)


Thallus pendent, extremely long (to 9\\', rarely to 15\\'), with slender, almost undivided branches. Side branches and fibrils perpendicular. Pollution-sensitive.

Accepted Name:
Usnea longissima Ach.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Usnea longissima in the Consortium of Pacific Northwest Herbaria database.

CalPhotos: Usnea longissima photos.

10 photographs:
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