1. 蓝色风铃草；野风信子；蓝铃花
Bluebells are plants that have blue bell-shaped flowers on thin upright stems. Bluebells flower in the spring.

1. perennial of northern hemisphere with slender stems and bell-shaped blue flowers

Synonym: harebellCampanula rotundifolia

2. one of the most handsome prairie wildflowers having large erect bell-shaped bluish flowers
of moist places in prairies and fields from eastern Colorado and Nebraska south to New Mexico and Texas

Synonym: prairie gentiantulip gentianEustoma grandiflorum

3. sometimes placed in genus Scilla

Synonym: wild hyacinthwood hyacinthharebellHyacinthoides nonscriptaScilla nonscripta