| Classification | Polygonaceae: Polygonum |
| Classification 1 | Polygonaceae: Persicaria |
| Harvard University Herbaria Barcode(s) | 00036757 |
| Type Status | Holotype |
| Collector | M. L. Fernald & B. H. Long |
| Collector number | 6198 |
| Country | United States of America |
| State | Virginia |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Virginia: Southampton County |
| Locality | Bottomland of Nottoway River, above Cypress Bridge |
| Date Collected | 1936-07-23 |
| Habitat | Siliceous and argillaceous alluvium bordering cypress swamp |
| Container | Flora of Southeastern Virginia |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0522bb2c-215a-4f69-bfa5-7c84514fc20e |
| Harvard University Herbaria Barcode | 00036757 |
| Herbarium | GH |
| Family | Polygonaceae |
| Type Status | Holotype |
| Holotype of | Polygonum setaceum var. tonsum Fernald |
| Verified by | Park, Chong-wook |
| Date Determined | 1987-12-** |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Polygonum setaceum var. tonsum Fernald) Rhodora 1938. 40: 414. |
| Family | Polygonaceae |
| Determination | Persicaria setacea (Baldwin) Small |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2019 |
| Determination Remarks | [current name] |
| Family | Polygonaceae |
| Determination | Polygonum setaceum var. tonsum Fernald |
| Determined by | [M. L. Fernald (scripsit) W. T. Kittredge, 2019] |
| Determination Remarks | [label name] |
| Annotation Text | n. var. Type no. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
