| Name | Mertensia nutans subsp. subcalva Piper |
| Authorship | Piper |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Mertensia nutans Howell |
| GUID | urn:lsid:ipni.org:names:157825-2 |
| Citation | 1906 Contr. U.S. Natl. Herb. 11: 479 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Mertensia nutans subsp. subcalva Piper |
| Identification made in | [no date] (1), 2016 (1) |