Hi Trish et al,
New here and love this thread. I've been growing foraged apios in S. Ontario (Z4 a-b) for a few years, and from the pictures I saw here they don't look much different from the improved varieties. Many small tubers, a few large ones, etc. I get plenty of flowers, and the occasional beans. I suspect I have a mix of diploids and triploids, matching what I see in the wild (lots of flowers, variety of tuber sizes, few beans). Almost all the wild ones I see grow on river banks, and loose tubers get carried by currents (hence lots of vegetative clonal dispersal). A quick couple of questions: are the improved varieties noticeably different, from your experience? And would you be interested in tuber/seed exchange? I typically get very few seeds (especially this year: bad drought), but lots of tubers.
G.