| Classification | Guajacum: Zygophyllaceae | 
| Barcode(s) | 00043927 | 
| Type Status | Isotype | 
| Collector | C. Seler & E. G. Seler | 
| Collector number | 1614 | 
| Country | Mexico | 
| State | Oaxaca | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Oaxaca | 
| Locality | La Mistequilla | 
| Date Collected | 1896-01-14 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6a60e9eb-bb46-4848-b221-c6c42ac02587 | 
| Harvard University Herbaria Barcode | 00043927 | 
| Herbarium | GH | 
| Family | Zygophyllaceae | 
| Type Status |  Isotype | 
| Isotype of |  Guajacum sanctum f. angustifolia Engler | 
| Verified by | D. M. Porter | 
| Date Determined | 1963-05-07 | 
| Taxon Reference | (for  Guajacum sanctum f. angustifolia Engler) Bull. Herb. Boissier 1903. ser. 2, 3: 96. | 
| Family | Zygophyllaceae | 
| Determination |  Guajacum sanctum Linnaeus | 
| Determined by | J.R. Dertien (DEK) | 
| Date Determined | 2008-01-** | 
| Determination Remarks |  [current name] | 
| Family | Zygophyllaceae | 
| Determination |  Guajacum sanctum f. angustifolia Engler | 
| Determination Remarks |  [label name] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |