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Any of several tall feather-leaved palm trees of the genus Roystonea chiefly of the Caribbean region, having a smooth trunk and widely planted as an ornamental.
(Plants) any of several palm trees of the genus Roystonea, esp R. regia, of tropical America, having a tall trunk with a tuft of feathery pinnate leaves
any of several tall, showy feather palms of the genus Roystonea, as R. regia.
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|Noun||1.||royal palm - tall feather palm of southern Florida and Cuba|
palm tree, palm - any plant of the family Palmae having an unbranched trunk crowned by large pinnate or palmate leaves