Dog Grass (Couch Grass) root
Also known as- Agropyron repens, couchgrass, quackgrass, quickgrass, twitchgrass, Agropyron firmum, Couch Grass, Cutch, Dog Grass, Dog-grass, Doggrass, Durfa Grass, Elymus repens, Elytrigia repens, Graminis rhizoma, Quitch Grass, Scotch Quelch, Triticum firmum, Triticum repens, Wheat Grass, Witch Grass.
Introduction
Dog grass is an invasive grass that grows well (many gardeners would say, too well) in regions with warm summers and cool or cold, damp winters. You should not grow doggrass in your herb garden unless you are able to keep it well contained.
Constituents
Agropyrene (bactericidal), calcium, fructosan, magnesium, manganese, mannitol, mucilage, phosphorous, potassium, selenium, silicon, sodium, tin, triticin, zinc.
Parts Used
Rhizome, roots, stems, dried and cut.
Typical Preparations
Taken internally as a tea and also used for baths and irrigation therapy. To make the tea, put 2 teaspoonfuls of the cut rhizome in a cup of water, bring to boiling and let simmer for 10 minutes. This should be drunk three times a day. Typically used with some combination of buchu, corn silk, hydrangea, uva ursi (bearberry), yarrow, and/or cranberries or cranberry juice. Can also be administered as a capsule or extract.
Summary
Dog grass is demulcent, meaning it soothes inflammations of mucosal linings, especially in the urinary tract. It is used in treatment of cystitis, prostatitis, and urethritis, and also to relieve pain of enlarged prostate and kidney stones.
Precautions
Dog grass is toxic to birds. It may also lower blood sugars in people. The August 2005 edition of the Journal of Ethnopharmacology published a study noting a potent blood sugar lowering effect of this herb in rats. Dog grass does not stimulate the release of insulin, but it appears to make cells much more sensitive to insulin, at least in the laboratory. Make sure you monitor your blood sugars if you are diabetic and take this herb.