I have a thought... Perhaps you could go to the Gingerwood Nursery site and send an e-mail to Tim Chapman along with pictures. He is very knowledgeable. This is from a profile...
"Gingerwood Nursery is located in St. Gabriel, Louisiana and is the project of Timothy Chapman. The nursery has been in existence in one shape or another for over 10 years. For the early years it was mainly a hobby and a way to help pay for a very bad plant addiction. In the last few years it has been building up for a much larger operation. The mission of Gingerwood Nursery is to provide both the best selection of ornamental gingers (and related plants) as well as to be the most complete and useful source of information for the collector and gardener. It is important to educate both the customers as well as other nurseries and organizations. Through the book ,Ornamental Gingers: A Guide to Selection and Cultivation, the public had the first reference on the ginger family. The reference site takes off where the book ended providing many more photos and current information on older varieties as well as many new introductions. The reference site is designed to be useful to anybody interested in gingers, not just my customers. It is an ongoing project that is only in its infancy but will continue to grow. In addition to my own efforts, other books and items of interest from others are available to you through the store. The on-line forums are included as a free service to anybody wishing to discuss gingers, bananas, and related plants. I hope that you find our latest efforts to be very useful and informative. The goal of Gingerwood Nursery is to be the leader in the areas of selection, quality, information, and new introductions. We are constantly looking for new material to offer. Through my own efforts I have many new items in development. I am also working with many other collectors and breeders to always have new material to offer every year. I am building my collection on many types of gingers and will be able to offer both the old standards as well as the exclusive new material. "
I think you could get a definitive ID from him.
