External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:1147663-2
- Species Name
- Petalostemon purpureus (Vent.) Rydb., Mem. New York Bot. Gard. 1: 238 (1900).
- Family as entered in IPNI
- Fabaceae