| Name | Machaeranthera pulverulenta var. vacans A. Nelson |
| Authorship | A. Nelson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Machaeranthera pulverulenta (Nuttall) Greene |
| GUID | urn:lsid:ipni.org:names:280209-2 |
| Citation | 1913 Bot. Gaz. 56: 70 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Machaeranthera pulverulenta var. vacans A. Nelson |
| Identification made in | [no date] (1) |
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