Posted 4/24/2015 10:37 PM (GMT 0)
Saw your post and was curious, so I looked it up:
http://www.herbal-supplement-resource.com/chinese-knotweed-fo-ti.html
"Chinese knotweed has a laxative property. It contains stilbene glycosides, which is similar to resveratrol. It has superior antioxidant property. Resveratrol extracted from fo-ti closely resembles the extract of Japanese knotweed (P. cuspidatum). Resveratrol is believed to extend the lifespan by various mechanisms.
Fo-ti seems to stimulate the adrenal gland and help detoxicate the body.
It has been used to get rid of atherosclerosis, blood deficiency, carbuncles, eczema, goiter, heat toxicity, high cholesterol, hypertension, lymph node inflammation, nerve damage, scrofula, sores, and wind rash.
Chinese knotweed has a reputation as a herb that could be helpful to increase fertility naturally in males and as an herbal impotence remedy.
Fo-ti is also believed to be a good herbal remedy to elevate the immune system naturally and to lower the level of bad cholesterol and meliorate from exhaustion. Some clinical researches about fo-ti reveal that the herb has the characteristics to strengthen immune system, facilitate the formation of red blood corpuscle, and fight against various pathogenic bacteria."
Looking at the picture associated with the link, Chinese knotweed looks very much like Japanese knotweed, and is in the same genus "Polygonum".
Buhner has a real affinity for invasive species, and suggests that anything invasive is probably beneficial for infection.
I would say you are probably OK using it, especially if you have been seeing benefits. Perhaps get some Japanese knotweed and mix the two so you are getting the benefits of both, or at least the benefit of the Japanese species as well.