29K views · 307 reactions | We recently joined our friend August at Mount Pisgah Arboretum for a mini tree walk. The Willamette Valley, and Oregon in general, has some wonderfully iconic species of trees, including the Oregon white oak and California black oak. Take a few minutes to learn about the stand-out Oregon white oak and get some easy and fascinating clues on ways to identify it in the valley. | Mountain Rose Herbs | Facebook