| Classification | Piperaceae: Piper |
| Harvard University Herbaria Barcode(s) | 01936266 |
| Collector | J. F. Maxwell |
| Collector number | 98-608 |
| Country | Thailand |
| State | Chiang Rai |
| Geography | Asia: Southeast Asia (Region): Thailand: Chiang Rai: Mueang Chiang Rai: Chiang Rai |
| Locality | District: Pan. Doi Luang National Park, west side; east side of Doi Mawk, Nam Mae Nga (stream) |
| Date Collected | 1998-05-29 |
| Verbatim Elevation | 925 m. |
| Habitat | partly shaded area along the small stream primary, evergreen, seasonal, hardwood forest; phyllite bedrock |
| Project | Plants on Edge/Endless Forms |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/51fe6d4a-4e1d-4fd3-bc42-27210cb48ec0 |
| Harvard University Herbaria Barcode | 01936266 |
| 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 |
