]> A barcode-00196664 China Sichuan Dujiangyan Municipality (formerly Guan Xian); just E of the town of Longxi along the E flowing tributary of the Longxi River. Conyza sumatrensis (Retzius) Walker (Retzius) Walker 2010-08-16 16:36:25 D. E. Boufford, B. Bartholomew, G. Li & G. H. Zhu