Cacti in Southern Utah and Arizona
California Succulent Road Trip
Treasures of the Southern Atacama Desert: The Land of the Copiapoa
Desert Island Rarities: Island Endemic Cacti and Succulents of Baja California
The Romance of Northern Mexico — A Plant Safari
Succulent Exploration in South Africa; Riverine Expeditions
Grit Dwellers, Quartzfields and Kokerbooms: Succulent Plants of the Western Cape