| Classification | Polygonaceae: Polygonum |
| Classification 1 | Polygonaceae: Persicaria |
| Classification 2 | Polygonaceae: Polygonum |
| Harvard University Herbaria Barcode(s) | 00036744 |
| Type Status | Isotype |
| Collector | O. A. Farwell |
| Collector number | 6384 |
| Country | United States of America |
| State | Michigan |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan: Wayne County: Detroit |
| Date Collected | 1922-09-15 |
| Habitat | Waste grounds |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/85e3e664-7404-4910-bff3-afb6262e1ddc |
| Harvard University Herbaria Barcode | 00036744 |
| Herbarium | GH |
| Family | Polygonaceae |
| Determination | Polygonum pensylvanicum var. viridialbum Farwell |
| Determination Remarks | [is label name] |
| Annotation Text | co-type |
| Family | Polygonaceae |
| Determination | Polygonum pensylvanicum var. laevigatum Fernald |
| Determined by | Crawford, W. Allen |
| Date Determined | 1971 |
| Family | Polygonaceae |
| Determination | Persicaria pensylvanica (Linnaeus) M. Gomez |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2019 |
| Determination Remarks | [is Current name] |
| Family | Polygonaceae |
| Type Status | Isotype |
| Isotype of | Polygonum pensylvanicum var. viridialbum Farwell |
| Verified by | Crawford, W. Allen |
| Date Determined | 1971-05-** |
| Determination Remarks | [is filed under name] |
| Taxon Reference | (for Polygonum pensylvanicum var. viridialbum Farwell) Pap. Michigan Acad. Sci. 1924. 3: 94. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
