Viola blanda vs sweet white violet

Viola blanda and sweet white violet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Viola blanda	Yes	No	No	No
sweet white violet	Yes	No	No	No

As nouns, Viola blanda and sweet white violet are synonyms defined as:

Viola blanda and sweet white violet: short-stemmed violet of eastern North America having fragrant purple-veined white flowers

Other synonyms of Viola blanda include white violet, woodland white violet.

Viola blanda (noun)	sweet white violet (noun)
short-stemmed violet of eastern North America having fragrant purple-veined white flowers	short-stemmed violet of eastern North America having fragrant purple-veined white flowers