| Name | Senecio aureus var. semicordatus (Mackenzie & Bush) Greenman |
| Authorship | (Mackenzie & Bush) Greenman |
| Rank | Variety |
| Placed in | Senecio aureus Linnaeus |
| Citation | 1916 Ann. Missouri Bot. Gard. 3(1): 129 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Senecio aureus var. semicordatus (Mackenzie & Bush) Greenman |
| Identification made in | [no date] (2) |
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