Rhoodendron macrophyllum (Pacific Rhododendron, Coast Rhododendron or Big Leaf Rhododendron) is a broadleaf evergreen rhododendron species native to western North America. The northern limit of the range of the Pacific Rhododendron is somewhat north of the border between Canada and the US in British Columbia. It is found as far south as Monterey Bay in California. It is mostly coastal in distribution but extends its range eastward to locations in the Cascade Mountains in Oregon, Washington and British Columbia.