Gideon F. Smith is South Africa's most prolific author on succulent plants. He is Chief Director for Biosystematics and Biodiversity Collections at the South African National Biodiversity Institute, professor of plant science at the University of Pretoria, and a research associate at the University of Coimbra in Portugal. Through his interests in the biology and classification of succulent plants, as well as landscaping and horticulture, he is involved in various national and international environmental research associations.