| Classification | Onagraceae: Oenothera |
| Harvard University Herbaria Barcode(s) | 00367855 |
| Collector | W. M. Klein |
| Collector number | 432 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Contra Costa County |
| Locality | Sandhills n. of Antioch, along the San Joaquin River channel |
| Date Collected | 1958-06-09 |
| Verbatim Elevation | ca. 5 ft. |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4fc195db-d7ae-46a7-9eef-0e080fdcfd16 |
| Harvard University Herbaria Barcode | 00367855 |
| Herbarium | GH |
| Family | Onagraceae |
| Determination | Oenothera deltoides subsp. howellii (Munz) W. M. Klein |
| Determined by | Klein, William McKinley |
| Date Determined | 1961 |
| Determination Remarks | [current name] |
| Family | Onagraceae |
| Determination | Oenothera deltoides subsp. howellii (Munz) W. M. Klein |
| Determination Remarks | [filed under] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |