| Harvard University Herbaria Barcode(s) | 02360377 | 
| Collector | D. T. MacDougal | 
| Collector number | 201 | 
| Country | United States of America | 
| State | Arizona | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona | 
| Locality | About Grand Canon of the Colorado | 
| Date Collected | 1898-06-30 | 
| Verbatim Elevation | 7000 feet | 
| Container | Plants of Arizona | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/dfe91d3d-3fdf-4248-b7a9-c7380c0a072f | 
| Harvard University Herbaria Barcode | 02360377 | 
| Herbarium | GH | 
| Determination | Polygonum douglasii Greene | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |