Viola arvensis vs heartsease

Viola arvensis and heartsease both are nouns.

Word	Noun	Adjective	Verb	Adverb
Viola arvensis	Yes	No	No	No
heartsease	Yes	No	No	No

As nouns, Viola arvensis and heartsease are synonyms defined as:

Viola arvensis and heartsease: common Old World viola with creamy often violet-tinged flowers

Other synonyms of Viola arvensis include field pansy.

Viola arvensis (noun)	heartsease (noun)
common Old World viola with creamy often violet-tinged flowers	the absence of mental stress or anxiety
	common Old World viola with creamy often violet-tinged flowers
	violet of Pacific coast of North America having white petals tinged with yellow and deep violet
	a common and long cultivated European herb from which most common garden pansies are derived