Ranunculus Genus buttercup; crowfoot Ranunculaceae

 

Ranunculus acris.commons.wikipedia.org.2

Ranunculus acris.commons.wikipedia.org (Accessed 4/2014).

Ranunculus is a genus of herbs, annual or perennial. 

Leaves alternate, various. 

Flowers yellow to white, radially symmetrical, sepals usually 5, green to yellowish, petals usually 5, pistils and stamens usually numerous in a head. 

Ranunculus acris.Dan Nickrent.phytoimages.siu.edu

Ranunculus acris.Dan Nickrent.phytoimages.siu.edu (Accessed 4/2014).

Fruit dry, a head of achenes.