External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:77324992-1
- Publication
- Allgemeine Botanische Zeitschrift für Systematik, Floristik, Pflanzengeographie etc.
- Collation
- 6: 170
- Family as entered in IPNI
- Scrophulariaceae
Nomenclatural Notes
as 'Vollmanni'