| Name | Syndesmon thalictroides f. oppositifolium Farwell |
| Authorship | Farwell |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Syndesmon thalictroides (Linnaeus) Hoffmannsegg ex Britton |
| GUID | urn:lsid:ipni.org:names:248075-2 |
| Citation | 1924 Pap. Michigan Acad. Sci. 2: 23 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Syndesmon thalictroides f. oppositifolium Farwell |
| Identification made in | [no date] (1) |