| Classification | Asteraceae: Eupatorium | 
| Classification 1 | Asteraceae: Koanophyllon | 
| Harvard University Herbaria Barcode(s) | 00007231 | 
| Type Status | Holotype | 
| Collector | R. H. Wetmore & E. C. Abbe | 
| Collector number | 77 | 
| Country | Panama | 
| Geography | North America: Central America (Region): Panama | 
| Locality | D. Fairchild Trail, Barro Colorado Island, Canal Zone | 
| Date Collected | 1931-12-26 | 
| Elevation | 800 m | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/d26b9273-e39d-4a7d-b619-c7ccfab07cb8 | 
| Harvard University Herbaria Barcode | 00007231 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Type Status | Holotype | 
| Holotype of | Eupatorium hypomalacum var. wetmorei B. L. Robinson | 
| Verified by | D. E. Boufford (A) | 
| Date Determined | 1981 | 
| Taxon Reference | (for  Eupatorium hypomalacum var. wetmorei B. L. Robinson) Contr. Gray Herb. 1934. 104: 17. | 
| Family | Asteraceae | 
| Determination | Koanophyllon wetmorei (B. L. Robinson) King & H. Robinson | 
| Determined by | R.M. King & H. Robinson | 
| Date Determined | 1974 | 
| Determination Remarks | [current name] | 
| Family | Asteraceae | 
| Determination | Eupatorium billbergianum Beurling | 
| Determination Remarks | [label name] | 
| Family | Asteraceae | 
| Determination | Eupatorium hypomalacum var. wetmorei B. L. Robinson | 
| Determined by | B.L. Robinson (GH) | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |