| Name | Myosurus minimus subsp. major (Greene) G. R. Campbell |
| Authorship | (Greene) G. R. Campbell |
| Rank | Subspecies |
| Placed in | Myosurus minimus Linnaeus |
| Citation | 1952 Aliso 2(4): 396 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Myosurus minimus subsp. major (Greene) G. R. Campbell |
| Identification made in | [no date] (3) |