We have 13 species in the Garden but not this one. http://bnhm.berkeley.edu/query/index.php/… Paul Licht, Director University of California Botanical Garden 200 Centennial Drive Berkeley, CA 94720 (510)-643-8999 http://botanicalgarden.berkeley.edu/ On 6/4/2012 9:27 AM, James Waddick wrote: > Dear PBSers, > Last weekend we we went to Omaha and saw a big plant of an > obvious Dioscorea at Lauritzen Gardens. > I did not recognize the species, but it is obviously fully > hardy that far north. It has three-winged papery seed pods in a chain > along the stem and there were seedlings at the base of the vine. > > A quick Googling came up with D. caucasica, but does anyone > grow or know this one? I notice there are NO hardy Dioscorea on the > wiki. > > Appreciate any experience. I have emailed the garden for an > ID, but appreciate hearing of experiences. > > Best Jim W. > >