Stereum subtomentosum, occurring only in the Northern Hemisphere in Europe, Asia and North America, grows on a number of exclusively broad-leaved trees, most often Fagus sylvatica and Alnus species. In Europe, it has a rather oceanic distribution. In Czechoslovakia it is known from 107 localities — 26 in Bohemia and Moravia and 81 in Slovakia. It occurs from plains up to high mountain elevations.
Kotlaba F. (1987): Stereum subtomentosum, its ecology and geographical distribution in Czechoslovakia. – Česká Mykologie 41(4): 207–218.
