Ranunculaceous :: Ranunculaceous (a.) Of or pertaining to a natural order of plants (Ranunculaceae), of which the buttercup is the type, and which includes also the virgin's bower, the monkshood, larkspur, anemone, meadow rue, and peony..
Ranunculus :: Ranunculus (n.) A genus of herbs, mostly with yellow flowers, including crowfoot, buttercups, and the cultivated ranunculi (R. Asiaticus, R. aconitifolius, etc.) in which the flowers are double and of various colors..