'Great water crowfoot' definitions:

Definition of 'Great water crowfoot'

From: GCIDE

Water crowfoot \Wa"ter crow"foot`\ (Bot.) An aquatic kind of buttercup (Ranunculus aquatilis), used as food for cattle in parts of England. [1913 Webster]
Great water crowfoot, an American water plant ({Ranunculus multifidus}), having deep yellow flowers. [1913 Webster]