Rhododendron falconeri is a rhododendron species native to the eastern Himalayas from eastern Nepal through Sikkim and Bhutan, as well as adjacent areas of northeastern India (Arunachal Pradesh and West Bengal), where it grows at altitudes of 2700-3750 meters. It is a tree, and sometimes the dominant canopy tree, that typically grows to 12-15 meters in height, with leathery leaves that are elliptic to obovate in shape and usually about 1 foot in length. Flowers are white to cream, pale yellow, or pinkish, with a prominent purple blotch.