Senecio aureus var. balsamitae
| Senecio aureus Linnaeus, var. balsamitae (Muhlenberg ex Willdenow) Torrey & A. Gray, Fl. N. Amer. 2: 442. 1843. | Senecio balsamitae Muhlenberg ex Willdenow 1803. | |
Senecio aureus var. pauperculus
| Senecio aureus Linnaeus, var. pauperculus (Michaux) MacMillan, Metasp. Minnesota Valley 556. 1892. | Senecio pauperculus Michaux 1803. | |
Senecio balsamitae
| Senecio balsamitae Muhlenberg ex Willdenow, Sp. Pl. 3: 1998. 1803. | | |
Senecio balsamitae var. crawfordii
| Senecio balsamitae Muhlenberg ex Willdenow, var. crawfordii (Britton) Greenman, Rhodora 10: 69. 1908. | Senecio crawfordii Britton 1901. | |
Senecio balsamitae var. firmifolius
| Senecio balsamitae Muhlenberg ex Willdenow, var. firmifolius Greenman, Rhodora 7: 244. 1905. | | CANADA: Quebec: Gaspe Co.: Creast of Les Murailles, Perce, 17 Aug 1904, Collins et al. s.n. (holotype: GH). |
Senecio balsamitae var. pauperculus
| Senecio balsamitae Muhlenberg ex Willdenow, var. pauperculus (Michaux) Fernald ex Greenman, Rhodora 3: 6. 1901. | Senecio pauperculus Michaux 1803. | |
Senecio balsamitae var. praelongus
| Senecio balsamitae Muhlenberg ex Willdenow, var. praelongus Greenman, Rhodora 3: 6. 1901. | | MASSACHUSETTS: Norfolk Co.: Near summit of Blue Hill, 9 Jun 1895, Rich s.n. (lectotype: GH). Lectotypified by T. M. Barkley, Trans. Kansas Acad. Sci. 65: 352. 1962. |
Senecio balsamitae var. thomsoniensis
| Senecio balsamitae Muhlenberg ex Willdenow, var. thomsoniensis Greenman, Ottawa Naturalist 25: 116. 1911. | | CANADA: British Columbia: North Thomson River, |
Senecio crawfordii
| Senecio crawfordii Britton, Torreya 1: 21. 1901. | | PENNSYLVANIA: Bucks Co.: Tullytown, 6 Jun 1900, Crawford s.n. (holotype: NY: isotypes: GH, NY). |
Senecio flavovirens
| Senecio flavovirens Rydberg, Bull. Torrey Bot. Club 27: 181. 1900. | | IDAHO: Nez Perce Co.: Beaver Canyon, Jun 1895, Rydberg s.n. (holotype: NY). |
Senecio flavovirens var. thomsoniensis
| Senecio flavovirens Rydberg, var. thomsoniensis (Greenman) Greenman, Ann. Missouri Bot. Gard. 3: 169. 1916. | Senecio balsamitae Muhlenberg ex Willdenow, var. thomsoniensis Greenman 1911. | |
Senecio gaspensis
| Senecio gaspensis Greenman, Ann. Missouri Bot. Gard. 3: 138. 1916. | | CANDA: Quebec: Gaspe Co.: Perce, s.d., Williams et al. s.n. (holotype: GH). |
Senecio gaspensis var. firmifolius
| Senecio gaspensis Greenman, var. firmifolius (Greenman) Fernald, Rhodora 45: 505. 1943. | Senecio balsamitae Muhlenberg ex Willdenow, var. firmifolius Greenman 1905. | |
Senecio gaspensis var. victorinii
| Senecio gaspensis Greenman, var. victorinii J. Rousseau, Canad. J. Res., Sect. C, Bot. Sci. 28: 242. 1950. | | CANADA: Quebec: Riviere Chilcotte, Anticosti Island, s.d., Victorin & Rolland 25163 (holotype: ?). |
Senecio multnomensis
| Senecio multnomensis Greenman, Monogr. Senecio 1: 24. 1901; Ottawa Naturalist 25: 115. 1911. | | OREGON: Multnomah Co.: |
Senecio pauperculus subsp. crawfordii
| Senecio pauperculus Michaux, subsp. crawfordii (Britton) G. W. Douglas & Ruyle-Douglas, Canad. J. Bot. 56: 1710. 1978. | Senecio crawfordii Britton 1901. | |
Senecio pauperculus var. crawfordii
| Senecio pauperculus Michaux, var. crawfordii (Britton) T. M. Barkley, Trans. Kansas Acad. Sci. 65: 357. 1962. | Senecio crawfordii Britton 1901. | |
Senecio pauperculus var. firmifolius
| Senecio pauperculus Michaux, var. firmifolius (Greenman) Greenman, Ann. Missouri Bot. Gard. 3: 166. 1916. | Senecio balsamitae Muhlenberg ex Willdenow, var. firmifolius Greenman 1905. | |
Senecio pauperculus var. flavovirens
| Senecio pauperculus Michaux, var. flavovirens (Rydberg) B. Boivin, Naturaliste Canad. 75: 214. 1948. | Senecio flavovirens Rydberg 1900. | |
Senecio pauperculus var. thomsoniensis
| Senecio pauperculus Michaux, var. t homsoniensis (Greenman) B. Boivin, Naturaliste Canad. 75: 214. 1948. | Senecio balsamitae Muhlenberg ex Willdenow, var. thomsoniensis Greenman 1911. | |
Senecio pauperculus var. typicus
| Senecio pauperculus Michaux, var. typicus B. Boivin, Naturaliste Canad. 75: 214. 1948, nom. inadmiss. | Senecio pauperculus Michaux 1803. | |
Senecio robbinsii var. subtomentosus
| Senecio robbinsii Oakes ex Rusby, var. subtomentosus Peck, Rep. (Annual) Regents Univ. State New York New York State Mus. 47: 143. 1894. | | NEW YORK: Kings Co.: Black River below Brownsville, s.d., Peck s.n. (holotype: NYS?; isotype: NY?). |
Senecio tweedyi
| Senecio tweedyi Rydberg, Bull. Torrey Bot. Club 37: 469. 1910. | | WYOMING: Teton Co.: Buffalo Fork, Aug 1897, Tweedy 586 (holotype: NY). |
Senecio pauperculus
| SENECIO PAUPERCULUS Michaux, Fl. Bor.-Amer. 2: 120. 1803. | | CANADA |
Senecio pauperculus var. balsamitae
| Senecio pauperculus Michaux, var. balsamitae (Muhlenberg ex Willdenow) Fernald, Rhodora 23: 299. 1921. | Senecio balsamitae Muhlenberg ex Willdenow 1803. | |
Senecio pauperculus var. praelongus
| Senecio pauperculus Michaux, var. praelongus (Greenman) House, Bull. New York State Mus. Nat. Hist. 243/244: 62. 1923. | Senecio balsamitae Muhlenberg ex Willdenow, var. praelongus Greenman 1901. | |