| Name | Petalostemon exile A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Petalostemon |
| Citation | 1853 Smithsonian Contr. Knowl. 5(6): 41 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Petalostemon exile A. Gray |
| Identification made in | [no date] (5), 2008 (2) |
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