First published by the Big Bend Natural History Association in 1988 as Trees & Shrubs of Trans-Pecos Texas, this book is the only keyed guide to the more than 400 species of woody plants native to the Trans-Pecos region and adjacent areas in eastern New Mexico and northern Mexico. A. Michael Powell has significantly revised and expanded this edition, including nomenclature changes for 62 genera and new distribution information for 60 genera.

One hundred thirty-two species, subspecies, and varieties of cacti may be found in Texas. About one hundred of them occur in the state s Trans-Pecos region, one of the most cactus-rich areas of the United States, but at least one kind can be found in every county of the state. This volume is an identification guide to the genera, species, and varieties of Texas cacti, with maps showing the distribution of each.Based on the comprehensive reference Cacti of the Trans-Pecos and Adjacent Regions (2004), by A. Michael Powell and James F. Weedin, this field guide provides briefer, less detailed...