A Naturalized Genus and Species Newly Recorded from Zhejiang and Jiangsu Province

Two naturalized taxa newly recorded from Zhejiang and Jiangsu are reported: Sisymbrium L. and S. officinale (L.) Scop. Among them, Sisymbrium L. is a new record genus of naturalized plant in Zhejiang and Jiangsu province, and S. officinale (L.) Scop. is a naturalized newly record species in East China. Its morphological characteristics and habitat were described with color photos. The voucher specimens were deposited in Zhejiang Museum of Natural History (ZM) and Institute of Botany, Jiangsu province and Chinese Academy of Sciences (NAS).