Reynoutria japonica Houtt.
Syn: Fallopia japonica (Houtt.) Ronse Decr.
Common name: Japanese Knotweed
Herbaceous perennial often reaching 3 m in height, with swollen nodes, leaves broadly ovate, up to 15 cm long and as broad with entire margin; flowers small, white in up to 15 cm long racemes.
Photographed from Japanese Park, Mississauga, Canada, 7-9-2019.
Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Mob: 9810359089