Twayblades and Adder’s-Mouth Orchids in Your Pocket: A Guide to the Native Liparis, Listera, and Malaxis Species of the Continen

Compiled and illustrated by long-time orchid specialist Paul Martin Brown, these pocket guides to the twayblades and adder’s-mouths form part of a series that will cover all the wild orchids of the continental 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 21 species, 1 additional variety, and 2 hybrids.