| Clarkia amoena (Lehm.) Nelson & J.F. Macbr. | Clarkia speciosa H.F.Lewis & M.R.Lewis ssp. polyantha H. Lewis & M. Lewis |
| Clarkia amoena (Lehm.) Nelson & J.F. Macbr. ssp. caurina (Abrams) F.H.Lewis & M.E.Lewis | Clarkia unguiculata Lindley |
| Clarkia pulchella Pursh | Clarkia williamsonii (Durand & Hilg.) Harlan Lewis & M. Lewis |
