| Classification | Piperaceae: Piper |
| Harvard University Herbaria Barcode(s) | 01936269 |
| Collector | J. F. Maxwell |
| Collector number | 98-571 |
| Country | Thailand |
| State | Chiang Rai |
| Geography | Asia: Southeast Asia (Region): Thailand: Chiang Rai: Mueang Chiang Rai: Chiang Rai |
| Locality | District: Wieng Bah Bao. Doi Luang National Park, west side; west side of Doi Mawk, upper water catchment valley; near Mah Kahm Bawm Village |
| Date Collected | 1998-05-25 |
| Verbatim Elevation | 1050 m |
| Habitat | shaded area along a small, perennial 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/dbef9645-f479-4c94-baf2-3b482c840a0c |
| Harvard University Herbaria Barcode | 01936269 |
| 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 |
