Smyrnium cordatum
| Smyrnium cordatum Walter, Fl. Carol. 114. 1788, nom. illegit. | BASIONYM: Thapsia trifoliata Linnaeus 1753. | |
Thapsia trifoliata
| Thapsia trifoliata Linnaeus, Sp. Pl. 262. 1753. | | TYPE: VIRGINIA: Without data, Kalm s.n. (lectotype: LINN 368.3). Lectotypified by Fernald, Rhodora 41: 442. 1939. |
Thaspium aureum var. cordatum
| Thaspium aureum (Linnaeus) Nuttall, var. cordatum Britton et al., Prelim. Cat. 22. 1888, nom. illegit. | BASIONYM: Smyrnium cordatum Walter 1788, nom. illegit.; Thapsia trifoliata Linnaeus 1753. | |
Thaspium aureum var. trifoliatum
| Thaspium aureum (Linnaeus) Nuttall, var. trifoliatum (Linnaeus) Britton et al., Prelim. Cat. 22. 1888. | BASIONYM: Thapsia trifoliata Linnaeus 1753. | |
Thaspium cordatum
| Thaspium cordatum Torrey & A. Gray, Fl. N. Amer. 1: 615. 1840, nom. illegit. | BASIONYM: Smyrnium cordatum Walter 1788, nom. illegit.; Thapsia trifoliata Linnaeus 1753. | |
Thaspium cordatum var. atropurpureum
| Thaspium cordatum Torrey & A. Gray, var. atropurpureum A. W. Wood, Class-Book Bot., ed. 2. 289. 1847, nom. inadmiss. | BASIONYM: Thaspium cordatum Torrey & A. Gray 1840, nom. illegit.; Smyrnium cordatum Walter 1788, nom. illegit.; Thapsia trifoliata Linnaeus 1753. | |
Thaspium ziziopsis
| Thaspium ziziopsis Daniels, Univ. Missouri Stud., Sci. Ser. 1: 329. 1907, nom. illegit. | BASIONYM: Thapsia trifoliata Linnaeus 1753. | |
Zizia cordata
| Zizia cordata W. D. J. Koch ex de Candolle, Prodr. 4: 100. 1830, nom. illegit. | BASIONYM: Smyrnium cordatum Walter 1788, nom. illegit.; Thapsia trifoliata Linnaeus 1753. | |
Cnidium atropurpureum
| Cnidium atropurpureum (Desrousseaux) Sprengel, in Roemer & Schultes, Syst. Veg. 6: 418. 1820. | BASIONYM: Smyrnium atropurpureum Desrousseaux 1791. | |
Smyrnium atropurpureum
| Smyrnium atropurpureum Desrousseaux, in Lamarck, Encycl. 3: 667. 1791. | | |
Thaspium atropurpureum
| Thaspium atropurpureum (Desrousseaux) Nuttall, Gen. N. Amer. Pl. 1: 196. 1818. | BASIONYM: Smyrnium atropurpureum Desrousseaux 1791. | |
Thaspium aureum var. atropurpureum
| Thaspium aureum (Linnaeus) Nuttall, var. atropurpureum (Desrousseaux) J. M. Coulter & Rose, Bot. Gaz. 12; !36. 1887. | BASIONYM: Smyrnium atropurpureum Desrousseaux 1791. | |
Thaspium trifoliatum forma atropurpureum
| Thaspium trifoliatum (Linnaeus) A. Gray, forma atropurpureum (Desrousseaux) Farwell, Rep. (Annual) Michigan Acad. Sci. 21: 369. 1920. | BASIONYM: Smyrnium atropurpureum Desrousseaux 1791. | |
Thaspium trifoliatum var. atropurpureum
| Thaspium trifoliatum (Linnaeus) A. Gray, var. atropurpureum (Desrousseaux) Torrey & A. Gray ex A. Gray, Manual, ed. 2. 156. 1856. | BASIONYM: Smyrnium atropurpureum Desrousseaux 1791. | |
Upopion cordatum
| Upopion cordatum Rafinesque, New Fl. 4: 31. 1838 ("1836"). | | TYPE: PENNSYLVANIA: |
Upopion heterophylum
| Upopion heterophylum Rafinesque, New Fl. 4: 31. 1838 ("1836"), nom. illegit. | BASIONYM: Smyrnium atropurpureum Desrousseaux 1791. | |
Upopion lobatum
| Upopion lobatum Rafinesque, New Fl. 4: 30. 1838 ("1836"). | | |
Upopion lobatum var. rigidum
| Upopion lobatum Rafinesque, var. rigidum Rafinesque, New Fl. 4: 30. 1838 ("1836"). | | |
Upopion pinnatum
| Upopion pinnatum Rafinesque, New Fl. 4: 30. 1838 ("1836"). | | TYPE: KENTUCKY: |
Upopion trifoliatum
| Upopion trifoliatum Rafinesque, New Fl. 4: 30. 1838 ("1836"). | | |