Spiraea d. douglasii - Rose Spiraea aka Hardhack aka Douglas Spiraea aka Western Spiraea Mt. Pisgah Arboretum, Lane Co., OR, July 20, 2012 © Donald H. Gudehus

Spiraea d. douglasii - Rose Spiraea aka Hardhack aka Douglas Spiraea aka Western Spiraea Mt. Pisgah Arboretum, Lane Co., OR, July 6, 2012 © Donald H. Gudehus

Spiraea d. douglasii - Rose Spiraea aka Hardhack aka Douglas Spiraea aka Western Spiraea Mt. Pisgah Arboretum, Lane Co., OR, July 20, 2012 © Donald H. Gudehus

Spiraea d. douglasii - Rose Spiraea aka Hardhack aka Douglas Spiraea aka Western Spiraea Mt. Pisgah Arboretum, Lane Co., OR, July 20, 2012 © Donald H. Gudehus