genus Calamus vs Calamus

genus Calamus and Calamus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Calamus	Yes	No	No	No
Calamus	Yes	No	No	No

As nouns, genus Calamus and Calamus are synonyms defined as:

genus Calamus and Calamus: a genus of Sparidae, containing porgies (Calamus)

genus Calamus (noun)	Calamus (noun)
a genus of Sparidae, containing porgies (Calamus)	a genus of Sparidae, containing porgies (Calamus)
distinctive often spiny-stemmed palms found as climbers in tropical and subtropical forest