''Platyhypnum molle'', the soft brook-moss, is a species of
moss
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hor ...
belonging to the family
Amblystegiaceae
Amblystegiaceae is a family of mosses. It includes 20 to 30 genus, genera with a total of up to 150 species.
It is native to Europe and Northern America.