The Simaroubaceae family, commonly known as the quassia family, consists of flowering plants primarily found in tropical regions. This family includes about 30 genera and 150 species, with notable members like Quassia and Ailanthus. These plants are often characterized by their bitter compounds, which have been used in traditional medicine and as insecticides. Many species in the Simaroubaceae family are trees or shrubs, and they typically have alternate, compound leaves. The flowers are usually small and can be either unisexual or bisexual, often arranged in clusters. Some members of this family are also valued for their wood and ornamental qualities.