Woolly foam lichen
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Lecanorales
- family: Stereocaulaceae
- genus: Stereocaulon
- species: Stereocaulon tomentosum
Kuusamo
Kymenlaakso
FinlandBleialf
Mützenich
Oberlascheid
Rheinland-Pfalz
GermanyWells Beach Station
MaineMarquette
MichiganColebrook
New HampshireGresham
OregonMontesano
Snoqualmie
Washington
United States