1. Medicinal and Magical Plants of Southern Africa: An Annotated Checklist;Arnold,2002
2. Acanthaceae;Balkwill,2000
3. The Kew Plant Glossary: An Illustrated Dictionary of Plant Terms;Beentje,2010
4. Benoist, R., 1967. Acanthacées. Tome I. In: Humbert, H. (Ed.) Flore de Madagascar et des Comores. Muséum national D’histoire Naturelle, Laboratoire de Phanérogamie, Paris.
5. Authors of Plant Names;Brummitt,1992