| Name | Monardella undulata subsp. crispa Elvin & A. C. Sanders |
| Authorship | Elvin & A. C. Sanders |
| Rank | Subspecies |
| Placed in | Monardella undulata Bentham |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Monardella undulata subsp. crispa Elvin & A. C. Sanders |
| Identification made in | [no date] (7), 2009 (4), 2012 (1) |