Common name: Pacific rhododendron, coast rhododendron, big-leaf rhododendron
Rhododendron macrophyllum is a protected native, found along the Hope-Princeton Highway. In fact, the state flower of Washington State is Rhododendron macrophyllum. The genus name is from the Greek for 'rose tree.'
Photo: Jörg Hempel / CC BY-SA 2.0 DE (https://creativecommons.org/licenses/by-sa/2.0/de/deed.en)