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|Noun||1.||genus Rhododendron - large genus of evergreen shrubs native to cooler regions of the northern hemisphere having showy flowers|
dilleniid dicot genus - genus of more or less advanced dicotyledonous trees and shrubs and herbs
rhododendron - any shrub of the genus Rhododendron: evergreen shrubs or small shrubby trees having leathery leaves and showy clusters of campanulate (bell-shaped) flowers