| Machaeranthera asteroides var. asteroides (Torr.) Greene, 1896 |
| Machaeranthera asteroides var. lagunensis (D.D. Keck) B.L. Turner, 1986 |
| Machaeranthera boltoniae (Greene) B.L. Turner & D.B. Horne, 1964 |
| Machaeranthera brevilingulata (Sch. Bip. ex Hemsl.) B.L. Turner & D.B. Horne, 1964 |
| Machaeranthera canescens (Pursh) A. Gray, 1852 |
| Machaeranthera canescens var. glabra A. Gray, 1852 |
| Machaeranthera carnosa (A. Gray) G.L. Nesom, 1989 |
| Machaeranthera carnosa var. intricata (A. Gray) G.L. Nesom, 1997 |
| Machaeranthera coulteri (A. Gray) B.L. Turner & D.B. Horne, 1964 |
| Machaeranthera coulteri var. arida (B.L. Turner & D.B. Horne) B.L. Turner, 1986 |
| Machaeranthera coulteri var. coulteri (A. Gray) B.L. Turner & D.B. Horne, 1964 |
| Machaeranthera crispa (Brandegee) B.L. Turner & D.B. Horne, 1964 |
| Machaeranthera crutchfieldii B.L. Turner, 1973 |
| Machaeranthera frutescens (S. Watson) Cronquist & D.D. Keck, 1957 |
| Machaeranthera gentryi (Standl.) Jackson ex B.L. Turner, 1972 |
| Machaeranthera gracilis (Nutt.) Shinners, 1950 |
| Machaeranthera gymnocephala (DC.) Shinners, 1950 |
| Machaeranthera gypsitherma G.L. Nesom, Vorobik & R.L. Hartm., 1990 |
| Machaeranthera gypsophila B.L. Turner, 1973 |
| Machaeranthera heterophylla R.L. Hartm., 1990 |