Bulbous Buttercup (Ranunculus bulbosus L.) also known as: Bulbous Crowfoot, St. Anthony's Turnip, Yellow Weed, Blister Flower and Gowan Division - Magnoliaphyta Class - Magnoliopsida Subclass - Magnoliidae Order - Ranunculales Family - Ranunculaceae Genus - Ranunculus The easiest way that I have found to identify this species is by the downturned sepals at the base of the flower. Weeds Taxonomic List List by Scientific Name List by Common Name