Lathyrus vs genus Lathyrus

Lathyrus and genus Lathyrus both are nouns.

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

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

Lathyrus and genus Lathyrus: genus of climbing herbs of Old World and temperate North and South America: vetchling; wild pea

Lathyrus (noun)	genus Lathyrus (noun)
genus of climbing herbs of Old World and temperate North and South America: vetchling; wild pea	genus of climbing herbs of Old World and temperate North and South America: vetchling; wild pea