The Pacific rhododendron (Rhododendron macrophyllum) belongs to Ericaceae (the Azalea family). It is an evergreen shrub that is native to the Pacific Coast from British Columbia to Monterey County in California. This shrub grows in roadsides, embankments and recently deforested wildlands, and it can reach 2-9 m in height. The leaves are deep green, leathery, thick, oblong to elliptic, and arranged in alternate. The pink to rose-purple flowers bloom in terminal clusters from May to July.