| Name | Trigonostemon oblongifolius Merrill |
| Authorship | Merrill |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Trigonostemon Blume |
| GUID | urn:lsid:ipni.org:names:358047-1 |
| Citation | 1913 [1912 publ. 1913] Philipp. J. Sci., C. 7: 409 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Trigonostemon oblongifolius Merrill |
| Identification made in | [no date] (4), 1978 (1) |