| Classification | Onagraceae: Oenothera |
| Harvard University Herbaria Barcode(s) | 01644793 |
| Collector | G. W. Stevens |
| Collector number | 561 |
| Country | United States of America |
| State | Oklahoma |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Oklahoma: Woods County |
| Locality | Near Avard |
| Date Collected | 1913-05-23 |
| Habitat | In hard red soil with much gypsum |
| Container | Flora of Oklahoma |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a3d516d6-97ad-427a-8291-bb15078b56ca |
| Harvard University Herbaria Barcode | 01644793 |
| Herbarium | GH |
| Previous ownership | Collected and Distributed by G. W. Stevens |
| Family | Onagraceae |
| Determination | Oenothera macrocarpa subsp. oklahomensis (Norton) W. L. Wagner |
| Determined by | Wagner, Warren Lambert |
| Date Determined | 1980 |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
