| Name | Petalostemon obovatum Torrey & A. Gray | 
| Authorship | Torrey & A. Gray | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Petalostemon | 
| Citation | 1838 Fl. N. Amer. [Torr. & A. Gray] 1: 310 | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Petalostemon obovatum Torrey & A. Gray | 
| Identification made in | [no date] (1), 2009 (1) |