bog moss vs sphagnum

bog moss and sphagnum both are nouns.

Word	Noun	Adjective	Verb	Adverb
bog moss	Yes	No	No	No
sphagnum	Yes	No	No	No

As nouns, bog moss and sphagnum are synonyms defined as:

bog moss and sphagnum: any of various pale or ashy mosses of the genus Sphagnum whose decomposed remains form peat

Other synonyms of bog moss include peat moss, sphagnum moss.

bog moss (noun)	sphagnum (noun)
any of various pale or ashy mosses of the genus Sphagnum whose decomposed remains form peat	any of various pale or ashy mosses of the genus Sphagnum whose decomposed remains form peat