| Name | Isostigma simplicifolium subsp. riedelii (Baker) G. Peter |
| Authorship | (Baker) G. Peter |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Isostigma simplicifolium Lessing |
| Remarks | ined as of Aug 2006 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Isostigma simplicifolium subsp. riedelii (Baker) G. Peter |
| Identification made in | 2006 (6) |