Johnny-jump-up vs Viola pedata

Johnny-jump-up and Viola pedata both are nouns.

Word	Noun	Adjective	Verb	Adverb
Johnny-jump-up	Yes	No	No	No
Viola pedata	Yes	No	No	No

As nouns, Johnny-jump-up and Viola pedata are synonyms defined as:

Johnny-jump-up and Viola pedata: common violet of the eastern United States with large pale blue or purple flowers resembling pansies

Other synonyms of Johnny-jump-up include bird's-foot violet, pansy violet, wood violet.

Johnny-jump-up (noun)	Viola pedata (noun)
common violet of the eastern United States with large pale blue or purple flowers resembling pansies	common violet of the eastern United States with large pale blue or purple flowers resembling pansies
a common and long cultivated European herb from which most common garden pansies are derived