| Classification | Polygonaceae: Polygonum |
| Harvard University Herbaria Barcode(s) | 00036724 |
| Type Status | Syntype |
| Collector | T. Nuttall |
| Country | United States of America |
| Geography | North America: North America (CA, US, MX) (Region): United States of America |
| Locality | Columbia Plains |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3ad11c88-62b0-45fa-8cdf-d76db175a0ca |
| Harvard University Herbaria Barcode | 00036724 |
| Herbarium | GH |
| Previous ownership | Presented by Elias Durand, 1866 |
| Family | Polygonaceae |
| Determination | Polygonum intermedium Nuttall ex S. Watson |
| Determination Remarks | [is label name] |
| Family | Polygonaceae |
| Determination | Polygonum douglasii subsp. nuttalli (Small) Hickman |
| Determined by | M. Costea |
| Date Determined | 2002 |
| Family | Polygonaceae |
| Determination | Polygonum nuttallii Small |
| Determined by | W. T. Kittredge |
| Date Determined | 2009 |
| Determination Remarks | [is Current name] |
| Family | Polygonaceae |
| Type Status | Syntype |
| Syntype of | Polygonum intermedium Nuttall ex S. Watson |
| Verified by | W. T. Kittredge |
| Date Determined | 2009 |
| Taxon Reference | (for Polygonum intermedium Nuttall ex S. Watson) Proc. Amer. Acad. Arts 1882. 17: 378. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | [mounted with non-type specimen of Howell & Howell 422, 267416] |
