Chenopodium pumilio a newly naturalized species in China Acmella radicans var. debilis (Kunth) R. K. Jansen (Asteraceae), A Newly Naturalized Plant in China Crassocephalum rubens (Juss. ex Jacq.) S. Moore (Asteraceae), A New Record of Naturalized Plant in China Corrigiola L. (Caryophyllaceae), a naturalized genus in China Pluchea sagittalis, a naturalized medical plant in mainland China Amaranthus standleyanus Parodi ex Covas, a newly naturalized plants in China