'Virgin's bower' definitions:

Definition of 'virgin's bower'

noun

Common climber of eastern North America that sprawls over other plants and bears numerous panicles of small creamy white flowers [syn: virgin's bower, old man's beard, devil's darning needle, Clematis virginiana]

From: GCIDE

Virgin \Vir"gin\, n. [L. virgo, -inis: cf. OF. virgine, virgene, virge, vierge, F. vierge.]
1. A woman who has had no carnal knowledge of man; a maid. [1913 Webster]
2. A person of the male sex who has not known sexual indulgence. [Archaic] --Wyclif. [1913 Webster]
These are they which were not defiled with women; for they are virgins. --Rev. xiv. 4. [1913 Webster]
He his flesh hath overcome; He was a virgin, as he said. --Gower. [1913 Webster]
3. (Astron.) See Virgo. [1913 Webster]
4. (Zool.) Any one of several species of gossamer-winged butterflies of the family Lycaenidae. [1913 Webster]
5. (Zool.) A female insect producing eggs from which young are hatched, though there has been no fecundation by a male; a parthenogenetic insect. [1913 Webster]
The Virgin, or The Blessed Virgin, the Virgin Mary, the Mother of Jesus Christ.
Virgin's bower (Bot.), a name given to several climbing plants of the genus Clematis, as Clematis Vitalba of Europe, and Clematis Virginiana of North America. [1913 Webster]

From: GCIDE

Clematis \Clem"a*tis\ (kl[e^]m"[.a]*t[i^]s), n. [NL., fr. Gr. klhmati`s brushwood, also (from its long, lithe branches) clematis. fr. klh^ma twig, shoot, fr. kla^n to break off.] (Bot.) A genus of flowering plants, of many species, mostly climbers, having feathery styles, which greatly enlarge in the fruit; -- called also virgin's bower. [1913 Webster]