| Classification | Asclepiadaceae: Asclepias |
| Harvard University Herbaria Barcode(s) | 00062393 |
| Type Status | Isosyntype |
| Collector | Josiah Gregg |
| Country | Mexico |
| State | Coahuila |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Coahuila |
| Locality | West of Saltillo |
| Date Collected | 1847-04-09 |
| Habitat | Dry valleys |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a8973549-91f4-4c59-9d5b-289fe8a63491 |
| Harvard University Herbaria Barcode | 00062393 |
| Herbarium | GH |
| Family | Asclepiadaceae |
| Determination | Asclepias brachystephana Engelmann ex Torrey |
| Determination Remarks | [is label name] |
| Family | Asclepiadaceae |
| Determination | Asclepias brachystephana Engelmann ex Torrey |
| Determined by | J. P. Therrien (KANU) |
| Date Determined | 1998-04-** |
| Determination Remarks | [is Current name] |
| Family | Asclepiadaceae |
| Type Status | Isosyntype |
| Isosyntype of | Asclepias brachystephana Engelmann ex Torrey |
| Verified by | W. T. Kittredge |
| Date Determined | 2008 |
| Taxon Reference | (for Asclepias brachystephana Engelmann ex Torrey) Rep. U.S. Mex. Bound., Bot. 1-20 Apr 1859. 163. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | [mounted with Isosyntype of Thurber 344 & non-type specimen of Thurber 421, 267324] |
