"harebells" in the noun sense
1. wild hyacinth, wood hyacinth, bluebell, harebell, Hyacinthoides nonscripta, Scilla nonscripta
sometimes placed in genus Scilla
2. harebell, bluebell, Campanula rotundifolia
perennial of northern hemisphere with slender stems and bell-shaped blue flowers
Source: WordNet® (An amazing lexical database of English)
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