| Lewisia brachycalyx Engelm. ex A. Gray |
Accepted |
10 |
| Lewisia cantelovii J. T. Howell |
Accepted |
14 |
| Lewisia columbiana var. rupicola (English) C. L. Hitchc. |
Accepted |
15 |
| Lewisia congdonii (Rydb.) S. Clay |
Accepted |
12 |
| Lewisia cotyledon (S. Watson) B. L. Rob. |
Accepted |
14 |
| Lewisia cotyledon var. heckneri (C. V. Morton) Munz |
Accepted |
14 |
| Lewisia cotyledon var. howellii (S. Watson) Jeps. |
Accepted |
14 |
| Lewisia leeana (Porter) B. L. Rob. |
Accepted |
7 |
| Lewisia longipetala (Piper) S. Clay |
Accepted |
11 |
| Lewisia nevadensis (A. Gray) B. L. Rob. |
Accepted |
28 |
| Lewisia pygmaea (A. Gray) B. L. Rob. |
Accepted |
33 |
| Lewisia rediviva Pursh |
Accepted |
13 |
| Lewisia tweedyi (A. Gray) B. L. Rob. |
Accepted |
46 |
| Lewisia columbiana var. columbiana |
Synonym of Lewisia columbiana (Howell) B. L. Rob. |
15 |
| Lewisia columbiana subsp. rupicola (English) R. S. Ferris |
Synonym of Lewisia columbiana var. rupicola (English) C. L. Hitchc. |
15 |
| Lewisia cotyledon var. cotyledon |
Synonym of Lewisia cotyledon (S. Watson) B. L. Rob. |
14 |
| Cistanthe tweedyi (A. Gray) Hershkovitz |
Synonym of Lewisia tweedyi (A. Gray) B. L. Rob. |
46 |