Columbine, Aquilegia Family: Ranunculaceae Pollen Grain Morphology: Tricolporate, spheroidal, verrucate or scabrate Pollen Grain Size: (polar) 24.9 + 0.6 µm by 23.6 + 0.3 µm March 6, 2015Ranunculaceae, UncategorizedAquilegia, columbine, Ranunculaceae, scabrate, tricolporate, verrucate