Ranunculus cortusifolius, also known as the Azores buttercup or Canary buttercup, is a plant species in the genus Ranunculus, family Ranunculaceae, the buttercup or crowfoot family. It grows on moister sites throughout the Azores, Madeira and Canary Islands but is widely cultivated elsewhere as an ornamental. There are reports of it having become naturalized in parts of California.

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