Pepper. It is a small deciduous tree of Rutaceae and Zanthoxylum, 7 meters high. There are thorns on the stem, short thorns on the branches, and the branches were pubescent that year. Leaf rachis usually with very narrow wings; Leaflets are opposite, ovoid, ovoid, sparsely lanceolate, with finely divided teeth at the leaf margin and oil spots between teeth. The back of the leaves is pilose, and the stems of the leaves have reddish-brown markings. Inflorescence terminal or born at the top of lateral branches, tepals yellow-green, roughly the same shape and size; This style leans back and bends. The fruit is purplish red with slightly raised oil spots. The flowering period is April-May, and the fruiting period is August-September or 65438+1October.