| Name | Deutzia longifolia f. elegans Rehder |
| Authorship | Rehder |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Deutzia longifolia Franchet |
| Citation | 1920 J. Arnold Arbor. 1: 209 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Deutzia longifolia f. elegans Rehder |
| Identification made in | [no date] (1) |