| Name | Lathyrus polymorphus subsp. incanus (J. G. Smith & Rydberg) C. L. Hitchcock |
| Authorship | (J. G. Smith & Rydberg) C. L. Hitchcock |
| Rank | Subspecies |
| Placed in | Lathyrus polymorphus Nuttall |
| Holdings | 24 Specimens held in the Harvard University Herbaria identified as Lathyrus polymorphus subsp. incanus (J. G. Smith & Rydberg) C. L. Hitchcock |
| Identification made in | [no date] (5), 1979 (19) |