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Acorus gramineus is an excellent Chinese herbal medicine in ancient Pizhou. Both the History of Song Dynasty and the History of Ming Dynasty recorded that there were 9-10 sections of Acorus gramineus produced in Longkou Town, Pizhou. There are many producing areas of Acorus gramineus in China, but 9-10 knots are rare, and it is only produced in Suikou. Acorus gramineus, warm in nature and pungent in taste, can enlighten the mind and broaden the chest, improve intelligence and eliminate phlegm; Indications are damp phlegm, unconsciousness, forgetfulness and dreaminess. A good medicine for improving intelligence and calming nerves. It is a wild plant, likes to be wet, and mostly lives in swamp areas. Nowadays, Acorus calamus in Pizhou is rare, let alone 9-10 knots of Acorus calamus.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)