| Name | Piptocarpha opaca subsp. piraparanaensis G. L. Smith |
| Authorship | G. L. Smith |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Piptocarpha opaca (Bentham) Baker |
| Citation | 1981 Ann. Missouri Bot. Gard. 68: 663 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Piptocarpha opaca subsp. piraparanaensis G. L. Smith |
| Identification made in | 1984 (1) |