Noun
perennial twining vine of Old World tropics having trifoliate leaves and racemes of fragrant purple pea-like flowers followed by maroon pods of edible seeds; grown as an ornamental and as a vegetable on the Indian subcontinent; sometimes placed in genus Dolichos
tree of the genus Catalpa with large leaves and white flowers followed by long slender pods
Source: WordNetSome of the exotic varieties of trees include Himalayan Cedar, Indian Bean Tree, Silver maple, and swamp cypress. Source: Internet