| Classification | Onagraceae: Pachylophus |
| Classification 1 | Onagraceae: Oenothera |
| Harvard University Herbaria Barcode(s) | 00071763 |
| Type Status | Isotype |
| Collector | J. S. Cotton |
| Collector number | 1345 |
| Country | United States of America |
| State | Washington |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Washington: Kittitas County |
| Locality | Yakima Region, Sentinel Bluffs, gravelly soil |
| Date Collected | 1903-07-14 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4c9561d4-5476-4ef1-ace5-dd626f29d959 |
| Harvard University Herbaria Barcode | 00071763 |
| Herbarium | GH |
| Family | Onagraceae |
| Type Status | Isotype |
| Isotype of | Pachylophus canescens Piper |
| Verified by | W.L. Wagner |
| Taxon Reference | (for Pachylophus canescens Piper) Contr. U.S. Natl. Herb. 1906. 11: 409. |
| Family | Onagraceae |
| Determination | Oenothera caespitosa subsp. caespitosa |
| Determined by | W.L. Wagner |
| Determination Remarks | [current name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
