Albert Otostegia integrifolia, more commonly known as Abyssinian rose,[2] a plant belonging to the family Lamiaceae, is endemic to Ethiopia, in the dry evergreen woodlands of the Bale Mountains, Tigray, Gondar, Wollo and Gojjam regions, North Shewa, Kaffa and Hararghe regions, as well as in the dry and moist agroclimatic zones of the district known as Dega, at altitudes of 1,300—2,800 m. above sea-level.
By using analytical and preparative gas chromatography (GC), terpenes have been extracted from air-dried Abyssinian rose (Otostegia integrifolia) leaves.
[7] The species O. integrifolia is well known for its pleasant odour, omnipotent medicinal values, and when its wood is fumigated has proven insecticidal properties (mosquito repellent).
[8] The wood of the Abyssinian rose (O. integrifolia) has insecticidal properties and is often gathered and burnt to fumigate homes, the aroma from the smoke being similar to perfume.
The beverage, known locally as tella, is made from a bath of malted barley to which a batch of hops is later added, derived from the ground leaves of gesho for fermenting, being a species of buckthorn (Rhamnus prinoides).