| Name | Oenanthe stolonifera f. elongata F. P. Metcalf |
| Authorship | F. P. Metcalf |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Oenanthe stolonifera (Roxburgh) de Candolle |
| Citation | 1934 Lingnan Sci. J. 13: 518 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Oenanthe stolonifera f. elongata F. P. Metcalf |
| Identification made in | [no date] (1) |