Genus Dirca is a small group of flowering plants that are commonly known as leatherwoods. The genus comprises only two species, Dirca palustris and Dirca mexicana. These plants are native to North America and are typically found in wetlands, swamps, and along the banks of streams and rivers. The common name "leatherwood" comes from the tough, flexible bark of the plant, which has been used historically to make cordage, baskets, and even clothing. Synonyms for Genus Dirca include Leatherwood genus, Thymelaeaceae family, and Dirca. These synonyms are used interchangeably to refer to this unique and interesting group of plants.