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...