| Classification | Hydrangeaceae: Philadelphus |
| Harvard University Herbaria Barcode(s) | 00106208 |
| Type Status | Holotype |
| Collector | A. Rehder |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Suffolk County: Boston |
| Locality | Arb. [Arnold Arboretum, Jamaica Plain] |
| Date Collected | 1917-07-03 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/09777c42-7379-45c9-a960-a7dc52853b25 |
| Harvard University Herbaria Barcode | 00106208 |
| Herbarium | A |
| Family | Hydrangeaceae |
| Type Status | Holotype |
| Holotype of | Philadelphus ×monstrosus Rehder |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2019 |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Philadelphus ×monstrosus Rehder) J. Arnold Arbor. 1920. 1: 199. |
| Family | Hydrangeaceae |
| Determination | Philadelphus ×monstrosus Rehder |
| Determined by | [annotation on sheet] |
| Determination Remarks | [current name] |
| Annotation Text | Ph. monstrosus Schelle (P. Gordonianus x pubescens) |
| Family | Hydrangeaceae |
| Determination | Philadelphus gordonianus Lindley |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
