According to the fourth national survey on Chinese material medical resources in Tibet autonomous region Medog County, 2 newly recorded genera and 2 newly recorded species are reported. They are Aspidocarya, Tubocapsicum, Acer erianthum Schwer. And Jasminum lanceolarium Roxb., respectively. All of them are traditional Chinese herbal medicine. The voucher specimens are deposited in the herbarium of Research Institute of Tibet Plateau Ecology (XZE).