| Name | Tadehagi triquetrum subsp. philippinense H. Ohashi |
| Authorship | H. Ohashi |
| Rank | Subspecies |
| Placed in | Tadehagi triquetrum (Linnaeus) H. Ohashi |
| Citation | 1995 J. Jap. Bot. 78: 291 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Tadehagi triquetrum subsp. philippinense H. Ohashi |
| Identification made in | 2018 (1) |