Anemone hepatica is a species of flowering plant in the buttercup family Ranunculaceae, native to woodland in temperate regions of the Northern Hemisphere. Traditional herbal medicine claimed that it was useful in the treatment of liver disorders, hence its name (from Greek hepatikos, 'of the liver'). This photograph shows the flowers of two A. hepatica varieties, blue (common) and pink (rare), growing in a forest in Keila, Estonia. The picture was focus-stacked from 29 separate images.Photograph credit: Ivar Leidus