Desert Plants

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.
http://www.dbg.org/

Desert Plants and Wildflowers Index - DesertUSA
Desert plants and wildflowers, includes color photos, articles and wildflower field guide.
http://www.desertusa.com/flora.html

Eastern Mojave Vegetation
Vegetation of Mojave National Preserve, San Bernardino County, California, and autoecology of Swertia albomarginata, Coleogyne ramosissima, and Salvia dorrii .
http://www.schweich.com

New Mexico Rare Plants
Descriptions, images, and range of many species.
http://nmrareplants.unm.edu/

Succulents in South Africa and Namibia
Peter van der Puyl's photos and descriptions of succulents in South Africa and Namibia.
http://www.cactus-mall.com/puyl/index.html

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.
http://www.eden-foundation.org/project/sahrplnt.html