Japanese Knotweed: Benefits of the Reynoutria japonica Plant DISCLAIMER: CONSULT WITH A DOCTOR BEFORE DECIDING ON A TREATMENT PLAN FOR ANY DISEASE OR INJURY. Japanese knotweed is a member of the Buckwheat/Knotweed family (Polygonaceae), along with plants like buckwheat, rhubarb, and others. The plant is native to East Asia. Interestingly, the Japanese name for Japanese … Continue reading Herbal Lyme Disease Cures: Japanese Knotweed (Reynoutria japonica) for Treatment of Lyme Disease in Humans