WALLFLOWERS
Noun
wallflowers
plural of wallflower
Source: Wiktionary
WALLFLOWER
Wall"flow`er, n.
1. (Bot.)
Definition: A perennial, cruciferous plant (Cheiranthus Cheiri), with
sweet-scented flowers varying in color from yellow to orange and deep
red. In Europe it very common on old walls.
Note: The name is sometimes extended to other species of Cheiranthus
and of the related genus Erysimum, especially the American Western
wallflower (Erysimum asperum), a biennial herb with orange-yellow
flowers.
2. A lady at a ball, who, either from choice, or because not asked to
dance, remains a spectator. [Colloq.]
Source: Webster’s Unabridged Dictionary 1913 Edition