There are about 200 to 600 species in this one genus. They mostly have yellow or sometimes white flowers. Buttercups include a wide variety of flower types, grouped by a plant naming system in the genus "Ranunculus". Among them are the Meadow Buttercup ("Ranunculus acris"), Goldilocks Buttercup ("R. auricomus"), Creeping Buttercup ("R. repens"), Large White Buttercup ("R. platanifolius"), Celery-leaved Buttercup ("R. sceleratus"), Corn Buttercup ("R. arvensis"), Bulbous Buttercup ("R. bulbosus") and Glacial Buttercup ("R. glacialis").