External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:35322-1
- Publication
- Flora; oder, (allgemeine) botanische Zeitung. Regensburg, Jena
- Collation
- 8(1): 183
- Family as entered in IPNI
- Rubiaceae