Family Fouquieriaceae is a taxonomic classification for a group of flowering plant species that belong to the order of Ericales. This family is also known by other synonyms in the botanical nomenclature such as Fouquieriaceae, Ocotillo family, and candlewood family. The common feature of these plants is the presence of fleshy stems and spines that help them adapt to the arid and semi-arid habitats where they thrive. Some of the well-known genera in this family include Fouquieria, Idria, and Euphorbia. Family Fouquieriaceae has significant ecological and cultural importance in the southwestern United States and Mexico, where the plants provide food and shelter for wildlife and are used in traditional medicine and crafts.