Senecio aureus var. fastigiatus
| Senecio aureus Linnaeus, var. fastigiatus Chapman, Fl. South. U.S. 245. 1860. | | TYPE: FLORIDA: |
Senecio aureus var. obovatus
| Senecio aureus Linnaeus, var. obovatus (Muhlenberg ex Willdenow) Torrey & A. Gray, Fl. N. Amer. 2; 442. 1843. | BASIONYM: Senecio obovatus Muhlenberg ex Willdenow 1803. | |
Senecio elliottii
| Senecio elliottii Torrey & A. Gray, Fl. N. Amer. 2: 443. 1843. | | SYNTYPE: FLORIDA: |
Senecio obovatus
| Senecio obovatus Muhlenberg ex Willdenow, Sp. Pl. 3: 1999. 1803. | | |
Senecio obovatus var. elliottii
| Senecio obovatus Muhlenberg ex Willdenow, var. elliottii (Torrey & A. Gray) Fernald, Rhodora 45: 507. 1943. | BASIONYM: Senecio elliottii Torrey & A. Gray 1843. | |
Senecio elongatus
| Senecio elongatus Pursh, Fl. Amer. Sept. 529. 1814. | | TYPE: PENNSYLVANIA: Northampton Co.: Near Easton, |
Senecio obovatus forma elongatus
| Senecio obovatus Muhlenberg ex Willdenow, forma elongatus (Pursh) Fernald, Rhodora 30: 225. 1928. | BASIONYM: Senecio elongatus Pursh 1814. | |
Senecio obovatus var. divisifolius
| Senecio obovatus Muhlenberg ex Willdenow, var. divisifolius Greenman, Ann. Missouri Bot. Gard. 3: 112. 1916. | | TYPE: TENNESSEE: Knox Co.: Knoxville, s.d., Ruth 707 (holotype: MO). |
Senecio obovatus var. elongatus
| Senecio obovatus Muhlenberg ex Willdenow, var. elongatus (Pursh) Britton, in Britton & A. Brown, Ill. Fl. N. U.S. 3: 478. 1898. | BASIONYM: Senecio elongatus Pursh 1814. | |
Senecio obovatus var. minor
| Senecio obovatus Muhlenberg ex Willdenow, var. minor Farwell, Rep. (Annual) Michigan Acad. Sci. 22: 185. 1921. | | TYPE: MICHIGAN: Washtenaw Co.: Ypsilanti, s.d., Farwell 5251a (holotype: BLH; isotype: GH). |
Senecio obovatus var. rotundus
| Senecio obovatus Muhlenberg ex Willdenow, var. rotundus Britton, in Britton & A. Brown, Ill. Fl. N. U.S. 3: 479. 1898. | | TYPE: KENTUCKY: Lincoln Co.: Bluelick, s.d., Short s.n. (lectotype: NY). Lectotypified by T. M. Barkley, Trans. Kansas Acad. Sci. 65: 345. 1962. |
Senecio obovatus var. umbratilis
| Senecio obovatus Muhlenberg ex Willdenow, var. umbratilis Greenman, Monogr. Senecio 1: 24. 1901; Ann. Missouri Bot. Gard. 3: 115. 1916. | | TYPE: INDIANA: Without locality, 12 May 1836, Clapp s.n. (holotype: GH; isotype: NY). |
Senecio rotundus
| Senecio rotundus (Britton) Small, Fl. S.E. U.S. 1304, 1341. 1903. | BASIONYM: Senecio obovatus Muhlenberg ex Willdenow, var. rotundus Britton 1898. | |