| Classification | Piperaceae: Piper |
| Harvard University Herbaria Barcode(s) | 01883500 |
| Collector | A. D. E. Elmer |
| Collector number | 18088 |
| Country | Philippines |
| State | Laguna |
| Geography | Asia: Southeast Asia (Region): Philippines: Luzon: Laguna |
| Locality | Los Baños (Mt. Maquiling) |
| Date Collected | 1917-06-** - 1917-07-** |
| Project | Plants on Edge/Endless Forms |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d6dbfa75-3f12-497f-8ac2-2cb9dd64b28f |
| Harvard University Herbaria Barcode | 01883500 |
| Herbarium | A |
| 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 |
