| Schoenocrambe agillacea (S.L.Welsh & N.D.Atwood) Rollins | Hesperidanthus argillaceus (S.L.Welsh & N.D.Atwood) Al-Shehbaz |
| Schoenocrambe barnebyi (S.L.Welsh & N.D.Atwood) Rollins | Hesperidanthus barnebyi (S.L.Welsh & N.D.Atwood) Al-Shehbaz |
| Schoenocrambe suffrutescens (Rollins) S.L.Welsh & Chatterly | Hesperidanthus suffrutescens (Rollins) Al-Shehbaz |