| Classification | Acanthaceae: Thyrsacanthus | 
| Classification 1 | Acanthaceae: Odontonema | 
| Harvard University Herbaria Barcode(s) | 00094142 | 
| Type Status | Isotype | 
| Collector | H. v. Türckheim | 
| Collector number | 740 | 
| Country | Guatemala | 
| State | Alta Verapaz | 
| Geography | North America: Central America (Region): Guatemala: Alta Verapaz | 
| Locality | Pansamalá, 3800 feet | 
| Date Collected | 1885-10-** | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b565b675-5651-49d4-8299-746b273d6deb | 
| Harvard University Herbaria Barcode | 00094142 | 
| Herbarium | GH | 
| Family | Acanthaceae | 
| Type Status | Isotype | 
| Isotype of | Thyrsacanthus geminatus Donnell Smith | 
| Taxon Reference | (for  Thyrsacanthus geminatus Donnell Smith) Bot. Gaz. 1888. 13: 75. | 
| Family | Acanthaceae | 
| Determination | Odontonema callistachyum (Schlechtendal & Chamisso) Kuntze | 
| Determined by | V. M. Baum | 
| Determination Remarks | [current name] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |