After some discussion on the Plant Identification Forum, we think this is an Oxalis Montana.
by ADKSpirit Feb 25, 2005 3:28 PM
Mountain Wood-sorrel in Maine, U.S.A., July 1998
by kennedyh Oct 1, 2009 9:29 PM
by LadyAshleyR May 21, 2010 4:37 PM