| Classification | Polygonaceae: Polygonum |
| Harvard University Herbaria Barcode(s) | 00866312 |
| Type Status | Isosyntype |
| Collector | S. T. Olney |
| Country | United States of America |
| State | Rhode Island |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Rhode Island: Bristol County: Barrington |
| Locality | Barrington R. [River] |
| Habitat | Salt marsh |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5a50e6ca-10c3-4e92-aa71-1c7ac63812dc |
| Harvard University Herbaria Barcode | 00866312 |
| Herbarium | GH |
| Family | Polygonaceae |
| Determination | Polygonum sp. |
| Determination Remarks | [is label name] |
| Family | Polygonaceae |
| Determination | Polygonum exsertum Small |
| Determined by | B.L.R. [B. L. Robinson] |
| Family | Polygonaceae |
| Determination | Polygonum ramosissimum Michaux |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2018 |
| Determination Remarks | [0] [is Current name] |
| Annotation Text | ssp. ramosissimum |
| Family | Polygonaceae |
| Type Status | Isosyntype |
| Isosyntype of | Polygonum exsertum Small |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2018 |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Polygonum exsertum Small) Bull. Torrey Bot. Club 1894. 21(4): 172-173, pl. 195. |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
