| Classification | Polygonaceae: Polygonum |
| Classification 1 | Polygonaceae: Persicaria |
| Harvard University Herbaria Barcode(s) | 00339135 |
| Type Status | Isosyntype |
| Collector | F. J. Lindheimer |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Harris County: Houston |
| Date Collected | 1842 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a88147c8-590a-45fe-a2b0-797c3897fecf |
| Harvard University Herbaria Barcode | 00339135 |
| Herbarium | GH |
| Previous ownership | ex George Engelmann, M.D. St. Louis, Mo |
| Family | Polygonaceae |
| Type Status | Isosyntype |
| Isosyntype of | Polygonum longistylum Small |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2011 |
| Determination Remarks | [filed under] |
| Annotation Text | ISOSYNTYPE |
| Taxon Reference | (for Polygonum longistylum Small) Bull. Torrey Bot. Club 1894. 21: 169. |
| Family | Polygonaceae |
| Determination | Persicaria bicornis (Rafinesque) Nieuwland |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2019 |
| Determination Remarks | [current name] |
| Family | Polygonaceae |
| Determination | Polygonum bicorne Rafinesque |
| Determined by | Irene Edin |
| Date Determined | 1986-05-** |
| Family | Polygonaceae |
| Determination | Polygonum pensylvanicum Linnaeus |
| Determination Remarks | [label name] |
| Family | Polygonaceae |
| Determination | Polygonum longistylum Small |
| Determined by | Robinson, Benjamin Lincoln |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
