| Name | Rhododendron columbianum (Piper) Harmaja |
| Authorship | (Piper) Harmaja |
| Rank | Species |
| Placed in | Rhododendron Linnaeus |
| GUID | urn:lsid:ipni.org:names:1029771-2 |
| Holdings | 230 Specimens held in the Harvard University Herbaria identified as Rhododendron columbianum (Piper) Harmaja |
| Identification made in | [no date] (229), 2009 (1) |