| Classification | Pontederiaceae: Pontederia |
| Harvard University Herbaria Barcode(s) | 02068370 |
| Collector | H. St. John |
| Collector number | 2623 |
| Country | United States of America |
| State | New York |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: New York: Suffolk County |
| Locality | shore of Sweezy Pond, Southampton |
| Date Collected | 1920-07-26 |
| Habitat | Wet shore of pond |
| Container | Flora of Eastern Long Island |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/49eb709d-c80f-4a9b-b819-019d35de35bc |
| Harvard University Herbaria Barcode | 02068370 |
| Herbarium | GH |
| Family | Pontederiaceae |
| Determination | Pontederia cordata Linnaeus |
| Determined by | Lowden, Richard M. |
| Date Determined | 1971-06-** |
| Determination Remarks | [filed under] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |