| Name | Saxifraga rivularis var. flexuosa (Sternberg) Engler & Irmscher |
| Authorship | (Sternberg) Engler & Irmscher |
| Rank | Variety |
| Placed in | Saxifraga rivularis Linnaeus |
| Citation | 1916 Pflanzenr. [Engler] 67[IV, 117(1)]: 282 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Saxifraga rivularis var. flexuosa (Sternberg) Engler & Irmscher |
| Identification made in | [no date] (1) |