club-moss vs lycopod

club-moss and lycopod both are nouns.

Word	Noun	Adjective	Verb	Adverb
club-moss	Yes	No	No	No
lycopod	Yes	No	No	No

As nouns, club-moss and lycopod are synonyms defined as:

club-moss and lycopod: primitive evergreen moss-like plant with spores in club-shaped strobiles

Other synonyms of club-moss include club moss.

club-moss (noun)	lycopod (noun)
primitive evergreen moss-like plant with spores in club-shaped strobiles	primitive evergreen moss-like plant with spores in club-shaped strobiles