Buttercup flowers are very beautiful flowers. Buttercup flowers are members of the Ranunculus genus, a large family of plants. Buttercups are not just yellow. There are orange, pink, red, and white varieties. Buttercups can grow from 14 to 16 inches in height. Buttercups usually bloom from April to May. Some buttercups bloom during the Summer. Purple Persian Buttercups http:/;/www.pinterest.com/pin/687432330595441372