Names: Steffensia angustifolia; Artanthe angustifolia.
Name: Matico.
Sources:The New RHS Dictionary of Gardening. 1992; Huxley. A.; MacMillan Press; 1992; ISBN 0-333-47494-5
The Encyclopedia of Medicinal
Plants; Chevallier. A.; Dorling Kindersley. London; 1996; ISBN 9-780751-303148.
Botany: evergreen shrub growing around 3 metres tall.
Taxonomy: included in Piper adunca by some authorities.
Region: S. America, Bolivia and Peru.
Content: essential oil, with camphor, borneol, azulene; tannins, mucilage, resins.