| Drudeophytum clementis M.E.Jones | Oreonana clementis (M.E.Jones) Jeps. |
| Drudeophytum howellii (J.M.Coult. & Rose) J.M.Coult. & Rose | Tauschia howellii (J.M.Coult. & Rose) J.F.Macbr. |
| Drudeophytum vestitum (S.Watson) J.M.Coult. & Rose | Oreonana vestita (S.Watson) Jeps. |