The properties of Rough Horsetail
Equisetum hyemale (commonly known as rough horsetail, scouring rush, scouringrush horsetail and, in South Africa, as snake grass) is a perennial herb in the fern Phylum Pteridophyta. It is a native plant throughout the Holarctic Kingdom, found in North America, Europe, and northern Asia.
Some Plateau Indian tribes boiled the stalks to produce a drink used as a diuretic and to treat venereal disease.