Blue: Columbine

Aquilegia coerulea (sometimes spelled caerulea ). Family: Ranunculaceae (Buttercup family).

It is illegal to dig up or remove the blue columbine from public lands in Colorado. Blue columbine | Colorado Public Radio blue columbine

Designated as the official state flower of Colorado in 1899. Aquilegia coerulea (sometimes spelled caerulea )