Soda rosmarinus

Soda rosmarinus is a perennial-green desert species of saltwort in the Amaranthaceae family. It is endemic to the lower Jordan Valley along the Dead Sea, in Israel and Jordan, and in the Syrian desert, Central Iraq (near Najaf) and in the coastal regions of Saudi Arabia, the islands of Bahrain, Qatar, and Iran, commonly known in Arabic by the names ʾušnān (Arabic: أشنان) and šenān and in the Neo-Aramaic languages by reflexes of ʾuḥlā. It is often used by Bedouins for cleaning as a soap substitute. In medieval Arabic literature, it is also known by the names of "green ushnan" and "launderers' potash", having been used since time immemorial to produce nabulsi soap and as an electuary in compounding theriac for use in treating scorpion stings, as well as for extracting potassium for other medicinal uses....read more on Wikipedia.