| Classification | Guajacum: Zygophyllaceae |
| Harvard University Herbaria Barcode(s) | 00043920 |
| Type Status | Holotype |
| Collector | G. Thurber |
| Collector number | 902 |
| Country | Mexico |
| State | Sonora |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Sonora |
| Locality | On hills between Rayon and Ures |
| Date Collected | 1851-10-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8ebbf6b0-7ac5-4182-8e49-7425de6edb39 |
| Harvard University Herbaria Barcode | 00043920 |
| Herbarium | GH |
| Family | Zygophyllaceae |
| Determination | Guajacum coulteri A. Gray |
| Determination Remarks | [is label name] |
| Family | Zygophyllaceae |
| Determination | Guajacum coulteri A. Gray |
| Determined by | J.R. Dertien |
| Date Determined | 2008-01-** |
| Determination Remarks | [is Current name] |
| Family | Zygophyllaceae |
| Type Status | Holotype |
| Holotype of | Guajacum coulteri A. Gray |
| Verified by | D. M. Porter |
| Date Determined | 1963-01-28 |
| Taxon Reference | (for Guajacum coulteri A. Gray) Mem. Amer. Acad. Arts 1855. 5: 312. |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
