David J Keil – författare

In the spirit of the avid desert botanist Willis Linn Jepson, The Jepson Desert Manual provides botanical enthusiasts of all backgrounds with the first comprehensive field guide focused exclusively on native and naturalized vascular plants of California's southeastern deserts. Based on The Jepson Manual: Higher Plants of California, the Desert Manual incorporates new illustrations for more than two hundred desert taxa, revised keys to identification, updated distributional information, and 128 color photographs. This guide will allow easier identification of California's fascinating desert plants than would be possible in a manual with broader geographic coverage. As in The Jepson Manual, detailed descriptions and illustrations of plant characteristics are provided, along with information on native versus alien status, habitats, elevation, endangerment, toxicity, weed status, horticultural requirements, and flowering times. Introductory sections on the desert setting and vegetation offer the reader a broad context and new perspectives for appreciating the more than twenty five hundred plant species included in the Manual.For amateur and professional botanists alike, the Desert Manual will prove to be an invaluable companion in California's spectacular Mojave Desert, Sonoran Desert, and southern Great Basin environments, including the White Mountains.

The second edition of The Jepson Manual thoroughly updates this acclaimed work, the single most comprehensive resource on California's amazingly diverse flora. Integrating the latest science with the results of intensive fieldwork, institutional collaboration, and the efforts of hundreds of contributing authors, this new edition is an essential reference on California's native and naturalized vascular plants. This edition includes treatments of many newly described or discovered taxa and recently introduced plants, and it reflects major improvements in plant taxonomy. Nearly two-thirds of the 7,600 species, subspecies, and varieties that the volume describes are now illustrated with diagnostic drawings. Geographic distributions, elevation ranges, flowering times, nomenclature, and the status of non-natives and native taxa of special concern have all been updated throughout. The second edition also allows for identification of 240 alien taxa that are not fully naturalized and features a new chapter on geologic, climatic, and vegetation history of California.

The second edition of The Jepson Manual thoroughly updates this acclaimed work, the single most comprehensive resource on California's amazingly diverse flora. This work integrates the latest science, the results of intensive fieldwork, institutional collaboration, and the efforts of hundreds of contributing authors into an essential reference on California's native and naturalized vascular plants. For the first time, the University of California Press is offering this resource as an e-book. The Digital Jepson Manual provides an unparalleled new level of interactivity, portability, and convenience. Extensive linking and e-book–friendly illustrations make it easier for users to learn about plant characteristics and identify the native and naturalized plants of California—all in a format ideally suited for use in the field. Using readily available e-book readers, field researchers, students, and enthusiasts can click on links to rapidly navigate through keys to families, genera, species, and subspecies or varieties. Specific features of The Digital Jepson Manual include the following: —Keys link forward and backward to other taxonomic levels. —Plate references in taxonomic treatments link to plates for rapid reference. —Plate captions link to taxonomic treatments. —Individual taxon figures appear next to species descriptions, and full plates are gathered in a special section. —Glossary terms link to any relevant illustrations. —List of families links each family to its taxonomic treatment. —Index is fully linked to taxonomic treatments.