| Classification | Piperaceae: Piper |
| Harvard University Herbaria Barcode(s) | 01936268 |
| Collector | J. F. Maxwell |
| Collector number | 97-207 |
| Country | Thailand |
| State | Chiang Mai |
| Geography | Asia: Southeast Asia (Region): Thailand: Chiang Mai: Sahngahmpang |
| Locality | Doi Lohn/Doi Mawn Lahn, west side, above Mae Gahm Bawng Village upper water catchment valley of Mae Lie Stream; bordering the west side of Jae Sawn National Park, Lampang Province |
| Date Collected | 1997-03-05 |
| Verbatim Elevation | 1600 m. |
| Habitat | shaded, moist area along a stream; seasonal, primary, evergreen hardwood forest; granite bedrock |
| Project | Plants on Edge/Endless Forms |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a6b9f98d-e6d2-4279-829a-acd36044555b |
| Harvard University Herbaria Barcode | 01936268 |
| 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 |
