External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:266903-2
- Species Name
- Viola purpurea Kellogg, Proc. Calif. Acad. Sci. 1: 56 (1855), isonym.
- Publication
- Madrono; Journal of the California Botanical Society
- Collation
- 17: 295
- Family as entered in IPNI
- Violaceae