- Thompson, DM, Systematics of Mimulus subg. Schizoplacus (Scrophulariaceae), Systematic Botany Monographs vol. 75: 1-213 (2005)
- Deyuan, H., Hanbi, Y., Cunli, J., et al., Flora of China, vol. 18 (Scrophulariaceae): 43-45 (1998)
Synonymous genera:
- Diplacus Nutt. (1838)
- Erythranthe Spach (1840)
- Eunanus Benth. (1846)
- Mimetanthe Greene (1885)