| Mentzelia affinis | Yellowcomet Blazingstar | Loasaceae | Acrolasia affinis (Greene) Rydb. | 3 | 0 |
| Mentzelia albicaulis | Whitestem Blazing Star | Loasaceae | Acrolasia albicaulis (Douglas ex Hook.) Rydb. Bartonia albicaulis Douglas ex Hook. Mentzelia albicaulis var. genuina Urb. & Gilg. | 4 | 1 |
| Mentzelia congesta | United Blazingstar | Loasaceae | Acrolasia congesta (Nutt.) Rydb. Trachyphytum congestum Nutt. | 3 | 0 |
| Mentzelia dispersa | Bushy Blazingstar | Loasaceae | Acrolasia dispersa (S.Watson) Rydb. | 3 | 0 |
| Mentzelia involucrata | Whitebract Blazingstar | Loasaceae | Bicuspidaria involucrata (S.Watson) Rydb. | 5 | 0 |
| Mentzelia laevicaulis | Smoothstem Blazingstar | Loasaceae | Bartonia laevicaulis Douglas ex Hook. Nuttallia laevicaulis (Douglas ex Hook.) Greene. Touterea laevicaulis (Douglas ex Hook.) Rydb. | 3 | 0 |
| Mentzelia multiflora | Manyflowered Mentzelia, Adonis blazingstar | Loasaceae | Bartonia multiflora Nutt.; Mentzelia pumila var. multiflora (Nutt.) Urb. & Gilg. | 2 | 1 |
| Mentzelia pumila | Bullet blazingstar, Dwarf Mentzelia | Loasaceae | Bartonia pumila (Torr. & A.Gray) Nutt. ex Jacks. Hesperaster pumila (Torr. & A.Gray) Cockerell. Mentzelia pumila var. genuina Urb. & Gilg. Nuttallia pumila (Torr. & A.Gray) Greene. Touterea pumila (Torr. & A.Gray) Rydb. | 3 | 1 |