| Name | Mertensia arizonica var. subnuda (J. F. Macbride) L. O. Williams |
| Authorship | (J. F. Macbride) L. O. Williams |
| Rank | Variety |
| Placed in | Mertensia arizonica Greene |
| Citation | 1937 Ann. Missouri Bot. Gard. 24(1): 66 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Mertensia arizonica var. subnuda (J. F. Macbride) L. O. Williams |
| Identification made in | 1936 (1), 2016 (1) |