| Apiaceae | |
Aulospermum aboriginum
| (M.E. Jones) Mathias | Ann. Missouri Bot. Gard. 17(3–4): 352 | 1930 |
| Apiaceae | |
Aulospermum angustum
| Osterh. | Bull. Torrey Bot. Club 31(6): 358 | 1904 |
| Apiaceae | |
Aulospermum basalticum
| (M.E. Jones) Tidestr. | Contr. U.S. Natl. Herb. 25: 397 | 1925 |
| Apiaceae | |
Aulospermum bethelii
| Osterh. | Muhlenbergia 6: 46 | 1910 |
| Apiaceae | |
Aulospermum cinerarium
| (A. Gray) J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 178 | 1900 |
| Apiaceae | |
Aulospermum duchesnense
| (M.E. Jones) Tidestr. | Contr. U.S. Natl. Herb. 25: 397 | 1925 |
| Apiaceae | |
Aulospermum glaucum
| (Nutt.) J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 176 | 1900 |
| Apiaceae | |
Aulospermum ibapense
| (M.E. Jones) J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 176 | 1900 |
| Apiaceae | |
Aulospermum jonesii
| (J.M. Coult. & Rose) J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 178 | 1900 |
| Apiaceae | |
Aulospermum longipes
| (S. Watson) J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 175 | 1900 |
| Apiaceae | |
Aulospermum minimum
| Mathias | Ann. Missouri Bot. Gard. 17(3–4): 353–354, pl. 25, f. 35, pl. 41, f. 2 | 1930 |
| Apiaceae | |
Aulospermum panamintense
| (J.M. Coult. & Rose) J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 177 | 1900 |
| Apiaceae | |
Aulospermum planosum
| Osterh. | Bull. Torrey Bot. Club 30(4): 236, f. s.n. | 1903 |
| Apiaceae | |
Aulospermum purpureum
| (S. Watson) J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 178 | 1900 |
| Apiaceae | |
Aulospermum rosei
| M.E. Jones ex J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 179 | 1900 |
| Apiaceae | |
Aulospermum watsonii
| J.M. Coult. & Rose | Contr. U.S. Natl. Herb. 7(1): 176 | 1900 |