BLUEBELL
harebell, bluebell, Campanula rotundifolia
(noun) perennial of northern hemisphere with slender stems and bell-shaped blue flowers
Source: WordNet® 3.1
Etymology
Noun
bluebell (plural bluebells)
Various flowering plants with blue, usually pendulous, flowers.
In genus Hyacinthoides
common bluebell (Hyacinthoides non-scripta)
Spanish bluebell (Hyacinthoides hispanica)
Italian bluebell (Hyacinthoides italica)
In other genera
genus Muscari, the grape hyacinth
(usually, in the plural) Virginia bluebell (Mertensia virginica)
Scottish bluebell (harebell) (Campanula rotundifolia)
Australian royal bluebell (Wahlenbergia gloriosa)
Texas bluebell (Eustoma russellianum)
desert bluebell or California bluebell (Phacelia campanularia)
Source: Wiktionary
Blue"bell`, n. (Bot.)
(a) A plant of the genus Campanula, especially the Campanula
rotundifolia, which bears blue bell-shaped flowers; the harebell.
(b) A plant of the genus Scilla (Scilla nutans).
Source: Webster’s Unabridged Dictionary 1913 Edition