| Classification | Asteraceae: Ageratum |
| Harvard University Herbaria Barcode(s) | 00057956 |
| Type Status | Holotype |
| Collector | H. F. Pittier |
| Collector number | 4914 |
| Country | Costa Rica |
| Geography | North America: Central America (Region): Costa Rica |
| Locality | [Graviers] du Rio Ceilo, pres de Borucu |
| Date Collected | 1892-01-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d7f6bd85-4a84-423f-8459-9efcf17c250c |
| Harvard University Herbaria Barcode | 00057956 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Ageratum riparium B. L. Robinson |
| Verified by | H. Robinson |
| Date Determined | 1996 |
| Taxon Reference | (for Ageratum riparium B. L. Robinson) Contr. Gray Herb. 1913. 42: 473. |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Ageratum riparium B. L. Robinson |
| Verified by | D. E. Boufford |
| Date Determined | 1981 |
| Taxon Reference | (for Ageratum riparium B. L. Robinson) Contr. Gray Herb. 1913. 42: 473. |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Ageratum riparium B. L. Robinson |
| Verified by | M. F. Johnson |
| Date Determined | 1967 |
| Taxon Reference | (for Ageratum riparium B. L. Robinson) Contr. Gray Herb. 1913. 42: 473. |
| Family | Asteraceae |
| Determination | Ageratum riparium B. L. Robinson |
| Determined by | B. L. Robinson |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Ageratum tomentosum Hemsley |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
