| Classification | Piperaceae: Piper |
| Harvard University Herbaria Barcode(s) | 01936262 |
| Collector | J. F. Maxwell |
| Collector number | 07-372 |
| Country | Thailand |
| State | Chiang Rai |
| Geography | Asia: Southeast Asia (Region): Thailand: Chiang Rai: Mueang Chiang Rai: Chiang Rai |
| Locality | District: Mae Sai. Doi Dtung (Tung), Pah Mee Cave, near Pah Mee(Akha) village; Wieng Pahng Kahm Subdistrict |
| Date Collected | 2007-06-02 |
| Verbatim Elevation | 600 m |
| Habitat | partly shaded, disturbed thicket bordering a steep stream valley in degrade mixed evergreen & deciduous, seasonal, hardwood forest with bamboo; granite bedrock |
| Project | Plants on Edge/Endless Forms TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2ae8e5b7-7045-4ba5-b239-471c01325b1b |
| Harvard University Herbaria Barcode | 01936262 |
| Herbarium | A |
| Family | Piperaceae |
| Determination | Piper retrofractum Vahl |
| Determination Remarks | [filed under] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
