Template:Verdcourt, 1953
- Verdcourt, B. 1953. A Revision of Certain African Genera of Herbaceous Rubiaceae V.: A Revision of the Genus Pentas Bentham Together with a Key to Related Genera. Bulletin du Jardin botanique de l’État à Bruxelles 23(3/4): 237–371. DOI: 10.2307/3666933
