| Classification | Polygonaceae: Persicaria | 
| Classification 1 | Polygonaceae: Polygonum | 
| Barcode(s) | 00342135 | 
| Collector | W. P. Rich | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County | 
| Locality | North Reservoir, Winchester & Spot Pond, Stoneham [Middlesex Fells Reservation] | 
| Date Collected | 1894-09-20 | 
| Habitat | growing on the stony shores | 
| Frequency | It is found abundantly | 
| Project | Metropolitan Park Flora | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/292c3032-d9b3-4fa1-98e8-62dc0b3f6193 | 
| Harvard University Herbaria Barcode | 00342135 | 
| Herbarium | GH | 
| Family | Polygonaceae | 
| Determination |  Persicaria lapathifolia (Linnaeus) Delarbre | 
| Determined by | Consaul, Laurie L. | 
| Date Determined | 1998 | 
| Determination Remarks |  [current name] | 
| Family | Polygonaceae | 
| Determination |  Polygonum lapathifolium Linnaeus | 
| Determined by | L. H. Irigoyen & A. Thellung | 
| Date Determined | 1928-03-29 | 
| Annotation Text | intermed. inter subsp. mesomorphum Danser et subsp. nodosum (Persoon) Weinmann | 
| Family | Polygonaceae | 
| Determination |  Polygonum lapathifolium var. salicifolium Sibthorp | 
| Determined by | Fernald, Merritt Lyndon | 
| Date Determined | 1919 | 
| Family | Polygonaceae | 
| Determination |  Polygonum lapathifolium var. incanum (F. W. Schmidt) W. D. J. Koch | 
| Determination Remarks |  [label name] | 
| Phenology | FlowerAndFruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |