genus Lathyrus vs Lathyrus

genus Lathyrus and Lathyrus both are nouns.

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

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

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

genus Lathyrus (noun)	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