About Ranunculus aquatilis L.
Ranunculus aquatilis, commonly called common water-crowfoot or white water-crowfoot, is a plant species in the genus Ranunculus. It is native across most of Europe, western North America, and northwest Africa. This is an aquatic plant that grows in mats on the water surface. It produces two forms of leaves: branching, thread-like leaves that grow underwater, and toothed floating leaves that sit on the water surface. Floating leaves may not develop when the plant grows in fast-flowing water. Its flowers have white petals and yellow centers, and are held one to two centimeters above the water. The floating leaves support the flowers, and develop at the same time the flowers form.