| Name | Senecio fastigiatus var. layneae (Greene) A. Gray |
| Authorship | (Greene) A. Gray |
| Rank | Variety |
| Placed in | Senecio fastigiatus Nuttall |
| Citation | 1884 Syn. Fl. N. Amer. 1(2): 390 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Senecio fastigiatus var. layneae (Greene) A. Gray |
| Identification made in | [no date] (1) |
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