From Natural History of Southeast Alaska
- PacNW Herbaria Records for Cladonia maxima
- Search Arctos Database for Cladonia maxima (Southeast only)
- Search Arctos Database for Cladonia maxima (entire database)
- Encyclopedia of Life search for Cladonia maxima
- iNaturalist Observations for Cladonia maxima in Southeast Alaska
- Geiser Dillman Derr Stensvold 1998: Abundant; in organic soil in raised hummocks in peatlands; from low elevation to alpine, where it can occur on rocks. Cladonia gracilis ssp vulerata can also grow very long podetia in humid coastal conditions; our collections may be that species.