Abstract: Collected from Chaozhou Dazhishan, two species were reported as new records to Guangdong Province, China, i. e., Polygonum persicaria L. var. opacum (Sam.) A. J. Li and Isachne sylvestris Ridley. All the voucher specimens are deposited in the Dendrological Herbarium of Forestry College, South China Agricultural University (CANT).