| Classification | Pontederiaceae: Pontederia | 
| Harvard University Herbaria Barcode(s) | 02068403 | 
| Collector | U. T. Waterfall | 
| Collector number | 18894 | 
| Country | United States of America | 
| State | Oklahoma | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Oklahoma: McCurtain County | 
| Locality | Yashaw Creek, 3.5 miles south of Broken Bow. | 
| Date Collected | 1937-06-04 | 
| Habitat | In water | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ca4c1e7f-4f74-4c1f-b092-37fe26f23cdd | 
| Harvard University Herbaria Barcode | 02068403 | 
| Herbarium | GH | 
| Previous ownership | [ex] Herbarium of Clark University | 
| Family | Pontederiaceae | 
| Determination | Pontederia cordata Linnaeus | 
| Determined by | Waterfall, Umaldy Theodore | 
| Date Determined | 1937-06-04 | 
| Determination Remarks | [filed under] [label name] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |