Clematis virginiana vs virgin's bower

Clematis virginiana and virgin's bower both are nouns.

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

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

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

Other synonyms of Clematis virginiana include devil's darning needle, old man's beard.

Clematis virginiana (noun)	virgin's bower (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