External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:76928-1
- Publication
- Annals of the Missouri Botanical Garden. St. Louis, Missouri
- Collation
- 1929, xvi. 417.
- Family as entered in IPNI
- Apocynaceae
Original Data
- Remarks
- Texas; Mexico