| Name | Senecio canus var. pygmaeus A. Gray |
| Authorship | A. Gray |
| Rank | Variety |
| Placed in | Senecio canus Hooker |
| Citation | 1858 Rep. U.S. Mex. Bound., Bot. 103 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Senecio canus var. pygmaeus A. Gray |
| Identification made in | [no date] (1), 2019 (2) |
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