| Leptonema Hook., 1844 |
| Lesquerella S. Watson, 1888 |
| Lesquerella argentea (S. Schauer) S. Watson, 1888 |
| Lesquerella argentea subsp. lepidota (Rose) Rollins & E.A. Shaw, 1973 |
| Lesquerella argyraea (A. Gray) S. Watson, 1888 |
| Lesquerella argyraea subsp. argyraea (A. Gray) S. Watson, 1888 |
| Lesquerella argyraea subsp. diffusa (Rollins) Rollins & E.A. Shaw, 1973 |
| Lesquerella berlandieri S. Watson, 1888 |
| Lesquerella diffusa Rollins, 1940 |
| Lesquerella fendleri (A. Gray) S. Watson, 1888 |
| Lesquerella flexuosa Brandegee, 1906 |
| Lesquerella inflata Rollins & E.A. Shaw, 1973 |
| Lesquerella johnstonii Rollins, 1941 |
| Lesquerella lasiocarpa (Hook. ex A. Gray) S. Watson, 1888 |
| Lesquerella lasiocarpa subsp. lasiocarpa (Hook. ex A. Gray) S. Watson, 1888 |
| Lesquerella lasiocarpa var. berlandieri (A. Gray) Payson, 1922 |
| Lesquerella lasiocarpa var. heterocroma (S. Watson) Rollins, 1955 |
| Lesquerella mcvaughiana Rollins, 1950 |
| Lesquerella mexicana Rollins, 1958 |
| Lesquerella mirandiana Rollins, 1958 |