Lathyrus odoratus vs sweetpea

Lathyrus odoratus and sweetpea both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lathyrus odoratus	Yes	No	No	No
sweetpea	Yes	No	No	No

As nouns, Lathyrus odoratus and sweetpea are synonyms defined as:

Lathyrus odoratus and sweetpea: climbing garden plant having fragrant pastel-colored flowers

Other synonyms of Lathyrus odoratus include sweet pea.

Lathyrus odoratus (noun)	sweetpea (noun)
climbing garden plant having fragrant pastel-colored flowers	climbing garden plant having fragrant pastel-colored flowers