Lycopodium lucidulum vs lycopod

Lycopodium lucidulum and lycopod both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lycopodium lucidulum	Yes	No	No	No
lycopod	Yes	No	No	No

As nouns, lycopod is a hypernym of Lycopodium lucidulum; that is, lycopod is a word with a broader meaning than Lycopodium lucidulum:

Lycopodium lucidulum: a variety of club moss, also known as shining firmoss (Lycopodium lucidulum)
lycopod: primitive evergreen moss-like plant with spores in club-shaped strobiles

Other hypernyms of Lycopodium lucidulum include club-moss, club moss.

Lycopodium lucidulum (noun)	lycopod (noun)
a variety of club moss, also known as shining firmoss (Lycopodium lucidulum)	primitive evergreen moss-like plant with spores in club-shaped strobiles