| Classification | Polygonaceae: Polygonum |
| Classification 1 | Polygonaceae: Persicaria |
| Harvard University Herbaria Barcode(s) | 00036679 |
| Type Status | Holotype |
| Collector | F. C. Seymour |
| Collector number | 251 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Hampden County: Southwick |
| Locality | along Great Brook |
| Date Collected | 1914-09-09 |
| Habitat | Swamp |
| Container | Flora of Hampden County, Massachusetts |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/dde10b59-0c34-4ba9-92df-2950388d419e |
| Harvard University Herbaria Barcode | 00036679 |
| Herbarium | GH |
| Family | Polygonaceae |
| Type Status | Holotype |
| Holotype of | Polygonum arifolium var. lentiforme Fernald & Griscom |
| Verified by | Park, Chong-wook |
| Date Determined | 1984-11-** |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Polygonum arifolium var. lentiforme Fernald & Griscom) Rhodora 1935. 37: 167. |
| Family | Polygonaceae |
| Determination | Persicaria arifolia (Linnaeus) Haraldson |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2019 |
| Determination Remarks | [current name] |
| Family | Polygonaceae |
| Determination | Polygonum arifolium Linnaeus |
| Determined by | Park, Chong-wook |
| Date Determined | 1985-08-08 |
| Family | Polygonaceae |
| Determination | Polygonum arifolium Linnaeus |
| Determination Remarks | [label name] |
| Family | Polygonaceae |
| Determination | Polygonum arifolium var. lentiforme Fernald & Griscom |
| Determined by | [M. L. Fernald (scripsit) annotation on sheet, W. T. Kittredge, 2019] |
| Annotation Text | Type n. var. |
| Sex | not determined |
| Phenology | FlowerAndFruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
