| Classification | Hydrangeaceae: Philadelphus | 
| Harvard University Herbaria Barcode(s) | 00042921 | 
| Type Status | Holotype | 
| Collector | T. Nuttall | 
| Country | United States of America | 
| State | Oregon | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Oregon | 
| Habitat | woods | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/194fddb6-41fc-4e4c-a717-fc13cc784378 | 
| Harvard University Herbaria Barcode | 00042921 | 
| Herbarium | GH | 
| Previous ownership | [Ex] Herb. John A. Lowell. Transferred from The Boston Society of Natural History to the Gray Herbarium of Harvard University, October 2, 1941 | 
| Family | Hydrangeaceae | 
| Type Status | Holotype | 
| Holotype of | Philadelphus oreganus Nuttall ex S. Y. Hu | 
| Verified by | Kittredge, Walter Tobey | 
| Date Determined | 2019 | 
| Determination Remarks | [filed under] | 
| Taxon Reference | (for  Philadelphus oreganus Nuttall ex S. Y. Hu) J. Arnold Arbor. 1955. 36: 85. | 
| Family | Hydrangeaceae | 
| Determination | Philadelphus lewisii Pursh | 
| Determined by | Kittredge, Walter Tobey | 
| Date Determined | 2019 | 
| Determination Remarks | [current name] | 
| Family | Hydrangeaceae | 
| Determination | Philadelphus oreganus Nuttall ex S. Y. Hu | 
| Determined by | Hu, Shiu Ying | 
| Date Determined | 1954-10-04 | 
| Annotation Text | type! | 
| Family | Hydrangeaceae | 
| Determination | Philadelphus gordonianus Lindley | 
| Determination Remarks | [label name] | 
| Family | Hydrangeaceae | 
| Determination | Philadelphus gordonianus Lindley | 
| Determined by | [annotation on sheet] | 
| Annotation Text | DC prodr. 3 p 205 | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |