Zanthoxylum fraxineum is a species of small tree that is commonly known as the fagara tree. It is native to North America and has a variety of common names, including the winged prickly ash, toothache tree, and northern prickly ash. The tree is known for its sharp thorns and spicy berries, which are used in traditional medicine for the treatment of various ailments, including toothaches and digestive issues. Other synonyms for the Zanthoxylum fraxineum include Zanthoxylum americanum, Fagara pterota, and Ptelea trifoliata. These synonyms reflect the plant's taxonomic classification and its various uses and characteristics, highlighting the rich diversity of this unique tree species.