]> A barcode-00239828 China Sichuan Dujiangyan Municipality (formerly Guan Xian); W side of the Longxi River upstream from the town of Longxi between the Longxi River and the vicinity of the Luojiaping Forest Farm. Polygonum amplexicaule D. Don D. Don 2010-08-16 16:37:49 D. E. Boufford, B. Bartholomew, G. Li & G. H. Zhu