| Classification | Ephedraceae: Ephedra |
| Harvard University Herbaria Barcode(s) | 00933728 |
| Collector | R. R. Innes & B. H. Warnock |
| Collector number | 557 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Brewster County |
| Locality | Dog Canyon, Big Bend Park at mouth of canyon |
| Date Collected | 1941-03-20 |
| Habitat | on flats in alluvial sands |
| Container | Flora of Trans-Pecos Texas |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3b106940-d602-4106-b1ff-b209ba22d5f3 |
| Harvard University Herbaria Barcode | 00933728 |
| Herbarium | GH |
| Family | Ephedraceae |
| Determination | Ephedra trifurca Torrey ex S. Watson |
| Determined by | Correll, Donovan Stewart |
| Date Determined | 1965 |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
