Used To Improve Cleansing in Europe and America. - Sheep Sorrel can be used as a diuretic, refrigerant and diaphoretic, and the juice extracted from the fresh plant is of use in urinary and kidney problems. Sheep Sorrel is also called sour-grass because of it's sharp taste. A good supportive for stomach hemorrhage and profuse menstruation. Also extremely effective for kidney, bladder and liver problems such as gravel, stones and jaundice. One of Sheep Sorrel's main claims to fame is its inclusion in the herbal tea, Essiac, which is purported to be effective in the fight against cleansing issues. - Sheep Sorrel is much smaller than either French or Garden Sorrel, and is often tinged, especially towards the end of the summer, a deep red hue. It is a slender plant, the stems from 3 to 4 inches to nearly a foot high, often many and tufted, decumbent at the base. The leaves, 1/2 to 2 inches in length, have long petioles and are variable in breadth, mostly narrow-lanceolate.