| Classification | Pontederiaceae: Heteranthera |
| Harvard University Herbaria Barcode(s) | 01919099 |
| Collector | S. R. Hill & M. A. Klein |
| Collector number | 16872 |
| Country | United States of America |
| State | Maryland |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Maryland: Prince Georges County: Accokeek |
| Locality | in Potomac River; near dock behind herb garden and residence, Bryan Point. |
| Date Collected | 1986-07-06 |
| Habitat | shallow (1-3 ft) water |
| Container | Plants of the National Colonial Farm |
| Frequency | rather common. |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/02153869-3eb2-44b1-afeb-abaf02ea5b03 |
| Harvard University Herbaria Barcode | 01919099 |
| Herbarium | GH |
| Family | Pontederiaceae |
| Determination | Heteranthera dubia MacMillan |
| Determined by | Horn, Charles N. |
| Date Determined | 1995 |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
