Noun | 1. | ![]() flower - a plant cultivated for its blooms or blossoms genus Aquilegia - columbine Aquilegia canadensis, meeting house, honeysuckle - columbine of eastern North America having long-spurred red flowers Aquilegia caerulea, Aquilegia scopulorum calcarea, blue columbine - columbine of the Rocky Mountains having long-spurred blue flowers Aquilegia vulgaris, granny's bonnets - common European columbine having variously colored (white or blue to purple or red) short-spurred flowers; naturalized in United States |