Reynoutria japonica(POLCU)
Distribution details in Japan
* Bailey J (2003) Japanese Knotweed s.l. at home and abroad. In: Plant invasions: ecological threats and management solutions. [ed. by Child L, Brock J H, Brundu G, Prach K, Pysĕk K, Wade P M, Williamson M]. Leiden, Netherlands: Backhuys Publishers. 183-196.