virgin's bower vs Clematis virginiana

virgin's bower and Clematis virginiana both are nouns.

Word	Noun	Adjective	Verb	Adverb
virgin's bower	Yes	No	No	No
Clematis virginiana	Yes	No	No	No

As nouns, virgin's bower and Clematis virginiana are synonyms defined as:

virgin's bower and Clematis virginiana: common climber of eastern North America that sprawls over other plants and bears numerous panicles of small creamy white flowers

Other synonyms of virgin's bower include devil's darning needle, old man's beard.

virgin's bower (noun)	Clematis virginiana (noun)
common climber of eastern North America that sprawls over other plants and bears numerous panicles of small creamy white flowers	common climber of eastern North America that sprawls over other plants and bears numerous panicles of small creamy white flowers