Hi, I'm still hoping to be able to tell apart N. gracilis and N. northiana. David Ehrlich gave me this link: http://www.iris-bulbeuses.org/bulletin/139-11.htm which was compiled by Maurice Bossard. Perhaps one of our members who speaks French can translate it for me. It looks like it's also translated into German: http://www.neomarica.net/literatur/franz1.htm We don't have N. longifolia listed on the wiki so maybe Paul could provide a picture of it? I also recall that Lee grows a lot of these so maybe he could help out with pictures too that will help us identifiy them. Mary Sue