| Pseudocymopterus J.M. Coult. & Rose, 1888 |
| Pseudocymopterus montanus (A. Gray) J.M. Coult. & Rose, 1888 |
| Rhodosciadium S. Watson, 1889 |
| Rhodosciadium argutum (Rose) Mathias & Constance, 1941 |
| Rhodosciadium diffusum (J.M. Coult. & Rose) Mathias & Constance, 1941 |
| Rhodosciadium dissectum J.M. Coult. & Rose, 1895 |
| Rhodosciadium glaucum J.M. Coult. & Rose, 1895 |
| Rhodosciadium glaucum var. glaucum J.M. Coult. & Rose, 1895 |
| Rhodosciadium glaucum var. lineare J.M. Coult. & Rose, 1895 |
| Rhodosciadium longipes (Rose) Mathias & Constance, 1941 |
| Rhodosciadium macrophyllum Mathias & Constance, 1941 |
| Rhodosciadium macvaughiae Mathias & Constance, 1973 |
| Rhodosciadium montanum (J.M. Coult. & Rose) Mathias & Constance, 1941 |
| Rhodosciadium nelsonii (J.M. Coult. & Rose) Mathias & Constance, 1941 |
| Rhodosciadium nudicaule Drude, 1898 |
| Rhodosciadium pringlei S. Watson, 1890 |
| Rhodosciadium purpureum Mathias & Constance, 1941 |
| Rhodosciadium rzedowskii Mathias & Constance, 1973 |
| Rhodosciadium tolucense (Kunth) Mathias, 1936 |
| Rhodosciadium tuberosum (J.M. Coult. & Rose) Drude, 1898 |