| Apiaceae | |
Rhodosciadium argutum
| (Rose) Mathias & Constance | Bull. Torrey Bot. Club 68(2): 124 | 1941 |
| Apiaceae | |
Rhodosciadium diffusum
| (J.M. Coult. & Rose) Mathias & Constance | Bull. Torrey Bot. Club 68(2): 124 | 1941 |
| Apiaceae | |
Rhodosciadium dissectum
| J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 3(5): 309 | 1895 |
| Apiaceae | |
Rhodosciadium glaucum
| J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 3(5): 309 | 1895 |
| Apiaceae | |
Rhodosciadium longipes
| (Rose) Mathias & Constance | Bull. Torrey Bot. Club 68(2): 124 | 1941 |
| Apiaceae | |
Rhodosciadium macrophyllum
| Mathias & Constance | Bull. Torrey Bot. Club 68(2): 124 | 1941 |
| Apiaceae | |
Rhodosciadium macvaughiae
| Mathias & Constance | Contr. Univ. Michigan Herb. 11(1): 21, f. 10 | 1973 |
| Apiaceae | |
Rhodosciadium montanum
| (J.M. Coult. & Rose) Mathias & Constance | Bull. Torrey Bot. Club 68(2): 124 | 1941 |
| Apiaceae | |
Rhodosciadium nelsonii
| (J.M. Coult. & Rose) Mathias & Constance | Bull. Torrey Bot. Club 68(2): 124 | 1941 |
| Apiaceae | |
Rhodosciadium nudicaule
| Drude | Nat. Pflanzenfam. 3(8): 223 | 1898 |
| Apiaceae | |
Rhodosciadium pringlei
| S. Watson | Proc. Amer. Acad. Arts 25: 151 | 1890 |
| Apiaceae | |
Rhodosciadium purpureum
| Mathias & Constance | Bull. Torrey Bot. Club 68(2): 124 | 1941 |
| Apiaceae | |
Rhodosciadium rzedowskii
| Mathias & Constance | Contr. Univ. Michigan Herb. 11(1): 19, f. 9 | 1973 |
| Apiaceae | |
Rhodosciadium tolucense
| (Kunth) Mathias | Brittonia 2(3): 245 | 1936 |
| Apiaceae | |
Rhodosciadium tuberosum
| (J.M. Coult. & Rose) Drude | Nat. Pflanzenfam. 3(Ab. 8): 223 | 1898 |