| Author | Title | Journal/publisher | Literature ref. no. |
| Kårehed, J. and Bremer, B. (2007) | The Systematics of Knoxieae (Rubiaceae): Molecular Data and Their Taxonomic Consequences | Taxon 56(4) 1051-1076 | 1695 |
Note that the process of capturing references from species to the literature and the reverse may be incomplete.
| No species found |