| Classification | Polygonaceae: Rumex | 
| Harvard University Herbaria Barcode(s) | 02004242 | 
| Collector | L. M. Umbach | 
| Collector number | 1303 | 
| Country | United States of America | 
| State | Illinois | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Illinois | 
| Locality | [data not captured] | 
| Date Collected | 1900-06-25 | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ec19a712-6e94-4c50-9466-b98071d4757f | 
| Harvard University Herbaria Barcode | 02004242 | 
| Herbarium | GH | 
| Family | Polygonaceae | 
| Determination | Rumex triangulivalvis (Danser) K. H. Rechinger | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |