Genus Rhododendron Home Schedule Activities Join SpeciesG External Links . The genus Rhododendron can be divided into four major subgenera.
Many people are unaware that azaleas are rhododendrons .
Species from 3 of these 4 major subgenera are represented in New England. There are no evergreen azaleas native to New England. In fact, there are no evergreen azaleas native to North America. Some species such as Rhododendron camtschaticum and Rhododendron albiflorum do not fit into any of these four major subgenera. Species Study Group studies the more than 800 species of the genus Rhododendron focusing on Rhododendron species hardy in New England .