| Classification | Plantaginaceae: Callitriche | 
| Barcode(s) | 00466721 | 
| Collector | J. Donnell Smith | 
| Country | United States of America | 
| State | Maryland | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Maryland: Garrett County | 
| Locality | Youghiogheny River | 
| Date Collected | 1881-09-18 | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e9079be3-c13e-478d-962f-5fb09b5f4cd8 | 
| Harvard University Herbaria Barcode | 00466721 | 
| Herbarium | GH | 
| Previous ownership | Ex Herb. John Donnell Smith. | 
| Family | Plantaginaceae | 
| Determination |  Callitriche heterophylla Pursh | 
| Determined by | Philbrick, Charles Thomas | 
| Date Determined | 1991 | 
| Determination Remarks |  [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |