Japanese Knotweed (Fallopia Japonica)
Japanese Knotweed, known as Hu Zhang in eastern medicine, is a large, herbaceous perennial plant of the family Polygonaceae, native to Eastern Asia in Japan, China and Korea. Although preparations of knotweed are a source of microelements: selenium, copper, molybdenum, manganese, iron, and zinc, this plant is mainly known for its stilbene compound Resveratrol,
a natural antibiotic.
Knotweed root is considered to be antibacterial, antiviral, antispriochetal, antifungal, immunostimulant, immunomodulant, anti-inflammatory, central nervous system (brain and spinal cord) relaxant, central nervous system protectant, antioxidant, antiathersclerotic, antihyperlipidemic, antimutagenic, anticarcinogenic, antineoplastic, vasodilator, antiasthmatic, inhibits platelet aggregation, inhibits eicosanoid synthesis, antithrombotic, tyrosine kinase inhibitor, oncogene inhibitor, antipyretic, cardioprotective, analgesic, antiulcer (slightly reduces stomach acid and protects against stress ulcers), hemostatic, astringent.