| Name | Lathyrus polymorphus subsp. polymorphus |
| Authorship | |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Lathyrus polymorphus Nuttall |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lathyrus polymorphus subsp. polymorphus |
| Identification made in | 1979 (1) |