| Classification | Rubiaceae: Argostemma |
| Harvard University Herbaria Barcode(s) | 02604850 |
| Collector | W. N. Takeuchi, J. Zegar & K. Sinotang |
| Collector number | 18500 |
| Country | Indonesia |
| State | Sumatera Utara (North Sumatra) |
| Geography | Asia: Southeast Asia (Region): Indonesia: Sumatera: Sumatera Utara (North Sumatra) |
| Locality | inland (N-NW) of the town of Batangtoru, Kecamatan Batangtoru, Kabupaten Tapanuli Selatan; Newmont Martabe Project site, Gerhana |
| Georeference | 01 33 04 N, 99 04 15 E |
| Date Collected | 2003-06-16 |
| Verbatim Elevation | 750 m |
| Habitat | closed-canopy low-montane ecotone forest |
| Project | All Asia Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/24f929c1-2fa2-407b-b179-5c0ed7f4fe0b |
| Harvard University Herbaria Barcode | 02604850 |
| Herbarium | A |
| Family | Rubiaceae |
| Determination | Argostemma involucratum Hemsl. |
| Determination Remarks | [filed under] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
