(Herbs Knowledge) Knotweed

| September 11, 2012 | 0 Comments | 19 views

Knotweed Scientific Names and Common Names,Knotweed Biochemical Information,Uses,Warning,Where Found,Parts Usually Used,Knotweed Description of Plant(s) and Culture,Medicinal Properties.

(Herbs Knowledge) Knotweed


Common Names | Parts Usually Used | Plant(s) & Culture | Where Found | Medicinal Properties | Biochemical Information
Legends, Myths and Stories | Uses | Formulas or Dosages | Bibliography

Scientific Names

Polygonum aviculare L.PolygonaceaeBuckwheat family

Common Names

Bird knotgrass
Cow grass
Common knotweed
Fen-chieh-ts’ao (Chinese name)
Pien-hsu (Chinese name)
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Parts Usually Used

Flowering herb, fresh or dried
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Description of Plant(s) and Culture

Knotgrass is an annual plant; the creeping, prostrate stem bears alternate, sessile, lanceolate leaves that narrow at the base, which is covered by brownish, sheathing, knotlike stipules. At the base of each leaf is a jagged, silvery sheath. The axillary flowers, growing all along the stem, are small, green and white or green with pink or purple margins.

Flowering time is from June to October. Blossoms are followed by brown, three-sided fruits in dried petals.

Other varieties: Smartweed or water pepper (P. hydropiper); Water smartweed (P. punctatum); Lady’s thumb, Doorweed, Heartsease, Heartweed, Pinkweed, Redleg, Spotted knotweed (P. persicaria).
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Where Found

Found in waste places, roadsides, yards, and cultivated soils all over the world. Also found on shores and around salt marshes. Culpeper tells us that Knotgrass or Knotweed grows in every country of this land.
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Medicinal Properties

Astringent, diuretic, hemostatic, vulnerary
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Biochemical Information

Volatile oils, silica, mucilage, tannins, and various flavonic derivatives, quercitol, salicylic acid, and kaempferol
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Legends, Myths and Stories

Knotgrass has been used in China as a medicinal for lung ailments since the second millennium BC.

A strong tea held in the mouth for 5 minutes relieves toothache and stops bleeding gums. Prolonged use is said to harden loose, spongy gums and make teeth less sensitive. Helps prevent tooth decay.
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Knotgrass is recommended for diarrhea, dysentery, and enteritis. Good for bronchitis, whooping cough, jaundice, and lung problems. As a blood coagulant, it is useful for all forms of internal bleeding, including stomach ulcers, snake bites, rheumatism, kills worms, blood purifier, inflammations, swellings, toothache, gangrene, canker sores, filthy ulcers, sores, venereal sores, ear infections, pyelitis, and piles. The fresh juices can be used to stop bleeding from the gums, wounds and from nosebleeds. Knotgrass has been successfully used for cholera infantum, a serious condition with simultaneous vomiting and diarrhea in infants. Taken regularly, the tea or the tincture dissolves gravel and stones.
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Formulas or Dosages

Infusion: steep 4 tsp. flowering herb in 1 cup water for 5 minutes. Take 1 to 1 1/2 cups a day, a mouthful at a time, as needed.

Decoction: use 4 tsp. flowering herb in 1 cup water. Take a mouthful at a time, as needed. For stomach and intestinal problems, take 1 to 1 1/2 cups a day; for lung problems 1 1/2 cups a day.

Tincture: take 10-20 drops of knotgrass with 5-20 drops of shave grass in water, three or more times a day.
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, by John Lust, Bantam Books, 666 Fifth Avenue, New York, NY. copyright 1974.

, compiled by Shih-Chen Li, Georgetown Press, San Francisco, California, 1973.

, by Nicholas Culpeper, Meyerbooks, publisher, PO Box 427, Glenwood, Illinois 60425, 1990, (reprint of 1814)

, by Michael Tierra, C.A., N.D., O.M.D., Lotus Press, PO Box 325, Twin Lakes. WI 53181., Copyright 1988, published 1992

, by Clarence Meyer, Meyerbooks, publisher, PO Box 427, Glenwood, Illinois 60425, 1973

, by Richard Lucas, Parker Publishing Company, Inc., West Nyack, NY, 1987.

, Third College Edition, Victoria Neufeldt, Editor in Chief, New World Dictionaries: A Division of Simon & Schuster, Inc., 15 Columbus Circle, New York, NY 10023, 1984

, by Pamela Forey and Ruth Lindsay, Crescent Books (January 27, 1992).

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Category: Herbs

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