Rhododendron (from Ancient Greek ῥόδον rhódon 'rose' and δένδρον déndron 'tree') is a genus of 1,024 species of woody plants in the heath family (Ericaceae), either evergreen or deciduous, and found mainly in Asia, although it is also widespread throughout the lowland and montane forests of the Pacific Northwest, California, and the highlands of the Appalachian Mountains of North America. It is the national flower of Nepal, as well as, the state flower of Washington and West Virginia in United States, ...