Clarkia borealis E. Small species accepted

Clarkia exilis F. H. Lewis & Vasek species accepted

Clarkia heterandra (Torr.) F. H. Lewis & P. H. Raven species accepted

Clarkia purpurea (Curtis) A. Nelson & J. F. Macbr. species accepted

Clarkia virgata Greene species accepted

Clarkia affinis F. H. Lewis & M. E. Lewis species accepted

Clarkia amoena (Lehm.) A. Nelson & J. F. Macbr. species accepted

Clarkia arcuata (Kellogg) A. Nelson & J. F. Macbr. species accepted

Clarkia australis E. Small species accepted

Clarkia biloba (Durand) A. Nelson & J. F. Macbr. species accepted

Clarkia bottae (Spach) F. H. Lewis & M. E. Lewis species accepted

Clarkia breweri (A. Gray) Greene species accepted

Clarkia concinna (Fisch. & C. A. Mey.) Greene species accepted

Clarkia cylindrica (Jeps.) F. H. Lewis & M. E. Lewis species accepted

Clarkia davyi (Jeps.) F. H. Lewis & M. E. Lewis species accepted

Clarkia delicata (Abrams) A. Nelson & J. F. Macbr. species accepted

Clarkia dudleyana (Abrams) J. F. Macbr. species accepted

Clarkia epilobioides (Nutt.) A. Nelson & J. F. Macbr. species accepted

Clarkia franciscana F. H. Lewis & P. H. Raven species accepted

Clarkia gracilis (Piper) A. Nelson & J. F. Macbr. species accepted

Clarkia imbricata F. H. Lewis & M. E. Lewis species accepted

Clarkia jolonensis D. R. Parn. species accepted

Clarkia lassenensis (Eastw.) F. H. Lewis & M. E. Lewis species accepted

Clarkia lewisii P. H. Raven & D. R. Parn. species accepted

Clarkia lingulata F. H. Lewis & M. E. Lewis species accepted

Clarkia mildrediae (A. Heller) F. H. Lewis & M. E. Lewis species accepted

Clarkia modesta Jeps. species accepted

Clarkia mosquinii E. Small species accepted

Clarkia prostrata F. H. Lewis & M. E. Lewis species accepted

Clarkia pulchella Pursh species accepted

Clarkia rhomboidea Douglas species accepted

Clarkia rostrata W. S. Davis species accepted

Clarkia rubicunda (Lindl.) F. H. Lewis & M. E. Lewis species accepted

Clarkia similis F. H. Lewis & W. R. Ernst species accepted

Clarkia speciosa F. H. & M. E. Lewis species accepted

Clarkia springvillensis Vasek species accepted

Clarkia stellata Mosquin species accepted

Clarkia tembloriensis Vasek species accepted

Clarkia tenella (Cav.) F. H. Lewis & M. E. Lewis species accepted

Clarkia unguiculata Lindl. species accepted

Clarkia williamsonii (Durand & Hilg.) F. H. Lewis & M. E. Lewis species accepted

Clarkia xantiana A. Gray species accepted