| Name | Lathyrus lanswertii subsp. aridus (Piper) Bradshaw |
| Authorship | (Piper) Bradshaw |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Lathyrus lanswertii Kellogg |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Lathyrus lanswertii subsp. aridus (Piper) Bradshaw |
| Identification made in | [no date] (11), 1949 (1), 1998 (1) |