| Classification | Pontederiaceae: Pontederia |
| Barcode(s) | 00518735 |
| Collector | B. T. Hamlin |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Medford |
| Locality | Boston Basin Ecoregion: Mystic River Watershed. Middlesex Fells Reservation, east shore of Quarter Mile Pond, just north of the small parking lot on Woodland Road |
| Georeference | 42° 26' 46" N, 71° 5' 43" W |
| Date Collected | 2013-07-14 |
| Habitat | growing in 1 m. deep water, muck soil, part sun |
| Container | Plants of Massachusetts |
| Remarks | 3 small colonies along 15 m. of shore. Associates: Ludwigia palustris, Lythrum salicaria, Nymphyaea odorata, Nymphoides aquatica, Peltandra virginica . |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b26d7ae1-2e94-498e-99a5-6efd7f77680e |
| Harvard University Herbaria Barcode | 00518735 |
| Herbarium | NEBC |
| Family | Pontederiaceae |
| Determination | Pontederia cordata Linnaeus |
| Determination Remarks | [filed under] [label name] [current name] |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
