Lady's-slippers in Your Pocket ― A Guide to the Native Cypriedium Orchids of the United States and Canada

Brown provides general distributional information, time of flowering, and habitat requirements for each species as well as a complete list of hybrids and the many different growth and color forms that can make identifying orchids so intriguing. He includes information on 12 species, 2 additional varieties, and 6 hybrids.

Wild lady’s-slippers grow from Alaska, with the spotted lady’s-slipper, Cypripedium guttatum, to Texas, with the ivory-lipped lady’s-slipper, C. kentuckiense. Most of these species are easy to identify based upon their general appearance, range, and time of flowering. Answer three simple questions—when, where, and how does it grow? Then compare the living plant with the striking photos in these backpack-friendly laminated guides and consult the keys that Brown has created. Following these steps should enable both professional and amateur naturalists to achieve the satisfaction of identifying specific orchids in their native environment.

Paul Martin Brown is a research associate at the University of Florida Herbarium, Florida Museum of Natural History, Gainesville, and at the Botanical Research Institute of Texas. Founder and editor of the North American Native Orchid Journal, he is the author of eleven books, most recently Wild Orchids of the Northeast and Field Guide to the Wild Orchids of Texas and has discovered or named several new species of ladies’-tresses in the past ten years and co-authored the treatment of Spiranthes for the Flora of North America (2002).