| Classification | Polygonaceae: Polygonum |
| Classification 1 | Polygonaceae: Persicaria |
| Classification 2 | Polygonaceae: Polygonum |
| Harvard University Herbaria Barcode(s) | 00036752 |
| Type Status | Holotype |
| Collector | M. L. Fernald & B. H. Long |
| Collector number | 13559 |
| Country | United States of America |
| State | Maine |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Maine: Sagadahoc County: Bowdoinham |
| Locality | Valley of Cathance River |
| Date Collected | 1916-09-** [September 14 and 19, 1916] |
| Habitat | Tidal mud-flats of the river |
| Container | Maine Flora, Sagadahoc County |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8a5f0cbe-b4f1-4722-b08b-487038b9f36a |
| Harvard University Herbaria Barcode | 00036752 |
| Herbarium | GH |
| Family | Polygonaceae |
| Determination | Polygonum sagittatum f. chloranthum Fernald |
| Determined by | [M. L. Fernald (scripsit) W. T. Kittredge, 2019] |
| Determination Remarks | [is label name] |
| Annotation Text | n. f. |
| Family | Polygonaceae |
| Determination | Persicaria sagittata (Linnaeus) H. Gross |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2019 |
| Determination Remarks | [is Current name] |
| Family | Polygonaceae |
| Type Status | Holotype |
| Holotype of | Polygonum sagittatum f. chloranthum Fernald |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2019 |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Polygonum sagittatum f. chloranthum Fernald) Rhodora 1917. 19: 134. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
