From Natural History of Southeast Alaska
- Search Arctos Database for Bryoria trichodes (Southeast only)
- Search Arctos Database for Bryoria trichodes (entire database)
- Encyclopedia of Life search for Bryoria trichodes
- iNaturalist Observations for Bryoria trichodes in Southeast Alaska
- Geiser Dillman Derr Stensvold 1998: subsp. americana and subsp. trichodes. Abundant; corticolous on conifers; low elevation to subalpine. About 85% of our collections were subsp. americana. The remainder were subsp. trichodes or intermediates between the two.