| Name | Isostigma peucedanifolium f. discoidea Hassler |
| Authorship | Hassler |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Isostigma peucedanifolium (Sprengel) Lessing |
| GUID | urn:lsid:ipni.org:names:130715-2 |
| Citation | 1916 Repert. Spec. Nov. Regni Veg. 14: 277 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Isostigma peucedanifolium f. discoidea Hassler |
| Identification made in | 2006 (2) |