| Classification | Piperaceae: Piper |
| Harvard University Herbaria Barcode(s) | 01883508 |
| Collector | E. D. Merrill |
| Collector number | 523 |
| Country | Philippines |
| State | Bulacan |
| Geography | Asia: Southeast Asia (Region): Philippines: Luzon: Bulacan |
| Locality | Angat |
| Date Collected | 1913-09-** |
| Project | Plants on Edge/Endless Forms |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/288aed9d-a462-4fd3-8e32-e92f30d37cce |
| Harvard University Herbaria Barcode | 01883508 |
| Herbarium | GH |
| Family | Piperaceae |
| Determination | Piper retrofractum Vahl |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
