| Classification | Asteraceae: Eupatorium | 
| Classification 1 | Asteraceae: Mexianthus | 
| Harvard University Herbaria Barcode(s) | 00010103 | 
| Type Status | Possible Isotype, Probable Isotype | 
| Collector | B. C. Seemann | 
| Country | Mexico | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico | 
| Locality | N. W. Mexico | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/eb5c3cfa-0803-4eab-b385-d3fd09ea4855 | 
| Harvard University Herbaria Barcode | 00010103 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Type Status | Possible Isotype | 
| Possible Isotype of | Eupatorium monanthum Schultz Bipontinus | 
| Verified by | K. Gandhi (GH) | 
| Date Determined | 2007-11-15 | 
| Taxon Reference | (for  Eupatorium monanthum Schultz Bipontinus) Bot. Voy. Herald [Seemann]  299. | 
| Family | Asteraceae | 
| Type Status | Probable Isotype | 
| Probable Isotype of | Eupatorium monanthum Schultz Bipontinus | 
| Verified by | T. J. Ayers (TEX) | 
| Date Determined | 1982-06-** | 
| Taxon Reference | (for  Eupatorium monanthum Schultz Bipontinus) Bot. Voy. Herald [Seemann]  299. | 
| Family | Asteraceae | 
| Determination | Mexianthus | 
| Determined by | T. J. Ayers (TEX) | 
| Date Determined | 1982-07-** | 
| Determination Remarks | Ined. [current name] | 
| Annotation Text | Mexianthus monanthus (Schultz-Bip. ex Seem.) Ayers probably isotype | 
| Family | Asteraceae | 
| Determination | Eupatorium monanthum Schultz Bipontinus | 
| Determination Remarks | Written on sheet [label name] | 
| Family | Asteraceae | 
| Determination | Eupatorium monanthum Schultz Bipontinus | 
| Determined by | B. L. Robinson (GH) | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |