| Name | Polygala subspinosa S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Polygala Linnaeus |
| Contains | Polygala subspinosa var. heteroryncha Barneby |
| GUID | urn:lsid:ipni.org:names:30050091-2 |
| Citation | 1873 Amer. Naturalist 7: 199 |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Polygala subspinosa S. Watson |
| Identification made in | [no date] (8), 1978 (5) |