| Classification | Asteraceae: Ageratum | 
| Harvard University Herbaria Barcode(s) | 00000663 | 
| Type Status | Holotype | 
| Collector | G. F. Gaumer | 
| Collector number | 395 | 
| Country | Mexico | 
| State | Yucatán | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Yucatán: Izamal | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ffff09c6-5481-4dd3-b33a-31894b830111 | 
| Harvard University Herbaria Barcode | 00000663 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Type Status | Holotype | 
| Holotype of | Ageratum gaumeri B. L. Robinson | 
| Verified by | D. E. Boufford | 
| Date Determined | 1981 | 
| Taxon Reference | (for  Ageratum gaumeri B. L. Robinson) Proc. Amer. Acad. Arts 1911. 47: 191. | 
| Family | Asteraceae | 
| Type Status | Holotype | 
| Holotype of | Ageratum guatamalense M. F. Johnson | 
| Verified by | M. F. Johnson | 
| Date Determined | 1967 | 
| Taxon Reference | (for  Ageratum guatamalense M. F. Johnson) Ann. Missouri Bot. Gard. 1971. 58: 64. | 
| Family | Asteraceae | 
| Determination | Ageratum intermedium Hemsley | 
| Determination Remarks | [label name] | 
| Family | Asteraceae | 
| Determination | Ageratum gaumeri B. L. Robinson | 
| Determined by | B. L. Robinson | 
| Family | Asteraceae | 
| Determination | Ageratum intermedium Hemsley | 
| Determined by | C. F. Millspaugh | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |