This is a real tough ID that has had us perplexed for years, in many years no blooms are found. This is a big bloom year for this population. The flowers refuse to be red.

http://climbers.lsa.umich.edu/?p=186
http://s16.photobucket.com/user/Pesjaner/media/2006%20-%20Planine%20-%20Mountains/10%20Kopitnik%2004_JUN_06/IMG_3941.jpg.html