Ranunculus aquatilis var. aquatilis   white water buttercup, water crowfoot
           (Alt: Ranunculus aquatilis var. hispidulus )
Ranunculaceae
native                      aquatic           
Distribution: Oregon Trail, West Valley

UW Burke Herbarium Link: Ranunculus aquatilis var. aquatilis
USDA Plants Link: Ranunculus aquatilis var. aquatilis   (RAAQ)