Abstract:A newly naturalized genus Bradburia Torr. & A.Gray and a newly naturalized species B. pilosa (Nutt.) Semple found in Nanchang, Jiangxi Province were both reported in China. The phylogenetic tree constructed based on nuclear gene (ITS) has determined the phylogenetic position of Bradburia, which is closely related to Chrysopsis (Nuttall) Elliot. Compared to Chrysopsis, Bradburia is recognized by its stems with pilose or hispid, basal leaves petiolate and nearly sessile and capitulum borne singly. Compared to other species of the genus, B. pilosa is recognized by its densely pilose, basal leaves persistent and nearly sessile, ray-florets and disc-florets have distinct pappi in 2 series, and the length of the inner is 5-10 times that of the outer. This species originally appeared at Changbei Airport in Nanchang in 2015 and might be brought by an unscheduled plane from a North American flight. By the end of 2022, it had spread to the economic and technological development zone 15 kilometers away, showing a significant invasion tendency.