| Monothrix congesta | Perityle congesta (M.E.Jones) Shinners trib. Heliantheae |
| Monothrix intricata | Laphamia intricata Brandegee trib. Heliantheae |
| Monothrix megalocephala | Laphamia megalocephala S.Watson trib. Heliantheae |
| Monothrix stansburyana | Laphamia stansburyi A.Gray trib. Heliantheae |
| Monothrix stansburyi | Laphamia stansburyi A.Gray trib. Heliantheae |