This is a Southwest Book of the Year, which won 2005 Southwest Book Award. '[A] monumental study' - review of Texas Books. 'A reliable and handy general reference for those with an interest in cacti inside and outside this region. Recommended' - ""Choice"". 'These authors have...provided the world with the much needed scientific clarification on this family of succulent plants that humans have loved and hated for thousands of years' - ""Sida"". 'Information: Wow!...For both lay readers and for researchers looking for lots of data about the cacti of this rich flora, this book offers fascinating details presented in a very readable fashion' - ""Cactus and Succulents Journal"". 'This will be the standard reference for decades to come' - ""Southwest Books of the Year"". Of the 132 species and varieties of cacti in Texas, about 104 of them occur in the fifteen counties of the Trans-Pecos region. This volume includes full descriptions of those many genera, species, and varieties of cacti, with sixty-four maps showing the distribution of each species in the region. The descriptions follow the latest findings of cactus researchers worldwide and include scientific names; common names; identifying characters based on vegetative habit, flowers, fruit, and seeds; identification of flowerless specimens; and, phenology and biosystematics. The introduction - full of details about the biology and morphology of the family Cactaceae, the uses of cacti, and the horticulture and conservation of cacti - is an important reference for general readers. More than three hundred beautiful full-color photographs of the cacti in flower and in fruit, all cross-referenced to their description in the text, highlight the book. A glossary of cactus terms, an exhaustive list of literature, and a thorough index complete the book. A. Michael Powell is professor emeritus of biology and former director and curator of the A Michael Powell Herbarium, Sul Ross State University. James F. Weedin is a professor in biology/geology at the Community College of Aurora, Colorado, and research associate with the Chihuahuan Desert Research Institute.

One hundred thirty-two species, subspecies, and varieties of cacti may be found in Texas. About one hundred of them occur in the states 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 treatments of the entire states species for educated general readers. More than three hundred beautiful full-color photographs of the cacti in flower and in fruit, each placed with its description in the text, highlight the book. Readers may identify cacti using color photographs of the plants, keys, distribution maps, and descriptions of the vegetative characters, flowers, and fruits. The introduction - full of details about the biology and morphology of the family Cactaceae and the uses, horticulture, and conservation of cacti - is an important reference for general readers. A glossary of cactus terms, an exhaustive list of literature, and a thorough index complete the book. This guide was designed for use by naturalists and hobbyists as well as serious students. Visitors to the national parks, state parks, and other natural areas of Texas will find it essential to identifying the cacti.