| Classification | Potamogetonaceae: Potamogeton |
| Harvard University Herbaria Barcode(s) | 00967200 |
| Collector | H. D. Thoreau |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Concord |
| Locality | Off Clam Shell |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/71e9b2e7-257f-4a62-80bd-de9d295f6d39 |
| Harvard University Herbaria Barcode | 00967200 |
| Herbarium | GH |
| Family | Potamogetonaceae |
| Determination | Potamogeton epihydrus Rafinesque |
| Determination Remarks | [current name] |
| Annotation Text | fide R. L. Angelo, Vascular Flora of Concord, Massachusetts
(http://www.ray-a.com/ConcordMassFlora.pdf)
Accessed 3 July 2017
|
| Family | Potamogetonaceae |
| Determination | Potamogeton epihydrus var. nuttallii (Chamisso & Schlechtendal) Fernald |
| Determined by | [annotation on sheet] |
| Family | Potamogetonaceae |
| Determination | Potamogeton claytonii Tuckerman |
| Determined by | [annotation on sheet] |
| Subcollection | Thoreau Herbarium |
| Phenology | FlowerAndFruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
