| Classification | Apocynaceae: Amsonia | 
| Harvard University Herbaria Barcode(s) | 02180786 | 
| Collector | R. M. Stewart | 
| Collector number | 2189 | 
| Country | Mexico | 
| State | Coahuila | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Coahuila | 
| Locality | CaƱon del Curevo, Sierra Planchada 6 km. east of Esmeralda | 
| Date Collected | 1941-10-25 | 
| Habitat | clumps in and along arroyo | 
| Frequency | frequent | 
| Project | Plants on Edge/Endless Forms TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/afbe2629-5cd1-4e21-a925-d496b030b118 | 
| Harvard University Herbaria Barcode | 02180786 | 
| Herbarium | GH | 
| Family | Apocynaceae | 
| Determination | Amsonia longiflora var. salpignantha (Woodson) S. P. McLaughlin | 
| Determined by | Lemke, David E. | 
| Date Determined | 1985 | 
| Determination Remarks | [current name] | 
| Family | Apocynaceae | 
| Determination | Amsonia longiflora Torrey | 
| Determination Remarks | [filed under] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |