Rhododendron macrophyllum
| Pacific rhododendron | |
|---|---|
| In the Olympic Peninsula, Washington | |
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Asterids | 
| Order: | Ericales | 
| Family: | Ericaceae | 
| Genus: | Rhododendron | 
| Section: | Rhododendron sect. Pontica | 
| Species: | R. macrophyllum | 
| Binomial name | |
| Rhododendron macrophyllum | |
| Natural range | |
| Synonyms | |
| Rhododendron californicum Hook. | |
Rhododendron macrophyllum, the Pacific rhododendron, California rosebay, California rhododendron, coast rhododendron or big leaf rhododendron, is a large-leaved species of Rhododendron native to the Pacific Coast of North America. It is the state flower of Washington.