| Classification | Apocynaceae: Alstonia | 
| Harvard University Herbaria Barcode(s) | 02182207 | 
| Collector | J. C. Regalado et al. | 
| Collector number | HLF4334 | 
| Country | Vietnam | 
| State | Ninh Thuan | 
| Geography | Asia: Southeast Asia (Region): Vietnam: Ninh Thuan | 
| Locality | Nui Chua National Park. Ninh Hai Distr., Vinh Hai Municipality, NEE slopes on Nui Chua mountains to SW. | 
| Georeference | 11° 43' 52" N, 109° 08' 35" E | 
| Date Collected | 2004-03-29 | 
| Elevation | 600 - 700 m | 
| Verbatim Elevation | 600-700 m | 
| Habitat | Primary evergreen closed dry forest on rocky mountain slopes composed with granite. Codominant of the forest. | 
| Frequency | Common. | 
| Project | Plants on Edge/Endless Forms TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d4b269ba-3bb0-432f-acce-310be3df8b24 | 
| Harvard University Herbaria Barcode | 02182207 | 
| Herbarium | GH | 
| Family | Apocynaceae | 
| Determination | Alstonia annamensis (Monachino) Sidiyasa | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |