What is of or pertaining to a natural order of plants (Ranunculaceæ), of which the buttercup is the type, and which includes also the virgin's bower, the monkshood, larkspur, anemone, meadow rue, and peony called?

ranunculaceous — Of or pertaining to a natural order of plants (Ranunculaceæ), of which the buttercup is the type, and which includes also the virgin's bower, the monkshood, larkspur, anemone, meadow rue, and peony. (Webster's 1913.)