| Classification | Rosaceae: Crataegus | 
| Harvard University Herbaria Barcode(s) | 01647604 | 
| Collector | Ern. P. Walker | 
| Collector number | 550 | 
| Country | United States of America | 
| State | Colorado | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Colorado: Montrose County | 
| Locality | Pinon | 
| Date Collected | 1912-09-11 | 
| Verbatim Elevation | 6300 | 
| Habitat | Moist creek banks. | 
| Container | Plants of Colorado | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/bf20e655-029a-4f8c-8243-d5ac99d05608 | 
| Harvard University Herbaria Barcode | 01647604 | 
| Herbarium | GH | 
| Previous ownership | From The Rocky Mountain Herbarium. University of Wyoming, Laramie. | 
| Family | Rosaceae | 
| Determination | Crataegus rivularis Nuttall ex Torrey & A. Gray | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |