| Lepidium medium Greene, 1895 |
| Lepidium medium var. pubescens (Greene) B.L. Rob., 1895 |
| Lepidium montanum Nutt. ex Torr. & A. Gray, 1838 |
| Lepidium montanum subsp. alyssoides (A. Gray) C.L. Hitchc., 1950 |
| Lepidium montanum subsp. angustifolium (C.L. Hitchc.) C.L. Hitchc., 1950 |
| Lepidium montanum var. alyssoides (A. Gray) M.E. Jones, 1893 |
| Lepidium montanum var. angustifolium C.L. Hitchc., 1936 |
| Lepidium montanum var. eastwoodiae (Wooton) C.L. Hitchc., 1936 |
| Lepidium monticola Brandegee, 1907 |
| Lepidium nelsonii L.O. Williams, 1934 |
| Lepidium nitidum Nutt. ex Torr. & A. Gray, 1838 |
| Lepidium nitidum var. insigne Greene, 1891 |
| Lepidium nitidum var. nitidum Nutt. ex Torr. & A. Gray, 1838 |
| Lepidium oblongum Small, 1903 |
| Lepidium oblongum var. insulare C.L. Hitchc., 1945 |
| Lepidium oblongum var. oblongum Small, 1903 |
| Lepidium occidentale Howell, 1895 |
| Lepidium palmeri S. Watson, 1889 |
| Lepidium procumbens L., 1753 |
| Lepidium robinsonii Thell., 1906 |