Ranunculus (Ranunculus asiaticus), or Persian buttercup, is a cool-season, tuberous-rooted perennial famed for its rose-like, peony-shaped blooms with layered, tissue-thin petals. They grow 12–24 inches tall, featuring parsley-like foliage and vibrant, long-lasting flowers in shades of white, pink, red, yellow, and orange, commonly used in spring bouquets.