Buttercup Family or Ranunculaceae
© Pathology Images Inc. 2002 2007
Vine climbing over other vegetation. White flowers about ¾ inch wide with 4 sepals (petals tiny or absent) and prominent stamens. Flowers in clusters arising from leaf axil. Leaves opposite with 3 coarsely toothed leaflets.
(Photographed in North Grenville, August 4, 2007)