Giant Knotweed (Reynoutria sachalinensis)

Extract of Reynoutria sachalinensis (giant knotweed) is prepared by mixing the dried and ground plant material with ethanol. The ethanol extract consists of a mixture of many substances, including the substance(s) that induces resistance to certain fungi. Giant knotweed is a member of the buckweed family of plants. During the 19th century, it was introduced …

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