heartsease vs field pansy

heartsease and field pansy both are nouns.

Word	Noun	Adjective	Verb	Adverb
heartsease	Yes	No	No	No
field pansy	Yes	No	No	No

As nouns, heartsease and field pansy are synonyms defined as:

heartsease and field pansy: common Old World viola with creamy often violet-tinged flowers

Other synonyms of heartsease include Viola arvensis.

heartsease (noun)	field pansy (noun)
the absence of mental stress or anxiety	common Old World viola with creamy often violet-tinged flowers
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