| Classification | Asclepiadaceae: Asclepias |
| Harvard University Herbaria Barcode(s) | 00571234 |
| Collector | R. A. Bye |
| Collector number | 4948 |
| Country | Mexico |
| State | Chihuahua |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Chihuahua |
| Locality | mnpo. de Bocoyna: east of Gonogochi, east of Creel; ca. 7500 ft |
| Date Collected | 1973-09-07 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c1ca320a-0a48-4d73-88f3-e7199a4956d6 |
| Harvard University Herbaria Barcode | 00571234 |
| Herbarium | ECON |
| Family | Asclepiadaceae |
| Determination | Asclepias contrayerba Sessé & Moçiño |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
