poor man's orchid vs butterfly flower

poor man's orchid and butterfly flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
poor man's orchid	Yes	No	No	No
butterfly flower	Yes	No	No	No

As nouns, poor man's orchid and butterfly flower are synonyms defined as:

poor man's orchid and butterfly flower: any plant of the genus Schizanthus having finely divided leaves and showy variegated flowers

Other synonyms of poor man's orchid include schizanthus.

poor man's orchid (noun)	butterfly flower (noun)
any plant of the genus Schizanthus having finely divided leaves and showy variegated flowers	any plant of the genus Schizanthus having finely divided leaves and showy variegated flowers
	shrub or small tree of Dutch Guiana having clusters of pink flowers streaked with purple