Desert Botanical Garden - The purpose of the Desert Botanical Garden is to exhibit, conserve, study and disseminate knowledge of arid-land plants of the world, with a particular emphasis on succulents and the native flora of the Southwestern United States. Desert Plants and Wildflowers Index - DesertUSA - Desert plants and wildflowers, includes color photos, articles and wildflower field guide. Eastern Mojave Vegetation - Vegetation of Mojave National Preserve, San Bernardino County, California, and autoecology of Swertia albomarginata, Coleogyne ramosissima, and Salvia dorrii . Succulents in South Africa and Namibia - Peter van der Puyl's photos and descriptions of succulents in South Africa and Namibia. Threats to the survival of plants native to the Sahara Desert - Article describing the environmental degradation that has taken place in the Saharan regions, and how it can be overcome. New Mexico Rare Plants - Descriptions, images, and range of many species.