Life … Plants Vascular Plants Dicots Heathers, Balsams, Primroses, and Allies Heathers Rhododendrons and Azaleas Pentanthera Rhododendron × pennsylvanicum hybrid 2 observations Rhododendron × pennsylvanicum Rhododendron × pennsylvanicum Key traits Layer Shrubs Plant type Perennial Shrub From USDA PLANTS. Close