purple virgin's bower vs purple clematis

purple virgin's bower and purple clematis both are nouns.

Word	Noun	Adjective	Verb	Adverb
purple virgin's bower	Yes	No	No	No
purple clematis	Yes	No	No	No

As nouns, purple virgin's bower and purple clematis are synonyms defined as:

purple virgin's bower and purple clematis: climber of northeastern North America having waxy purplish-blue flowers

Other synonyms of purple virgin's bower include Clematis verticillaris, mountain clematis.

purple virgin's bower (noun)	purple clematis (noun)
climber of northeastern North America having waxy purplish-blue flowers	climber of northeastern North America having waxy purplish-blue flowers