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|Noun||1.||genus Casuarina - genus of trees and shrubs widely naturalized in southern United States and West Indies; coextensive with the family Casuarinaceae and order Casuarinales|
dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination
casuarina - any of various trees and shrubs of the genus Casuarina having jointed stems and whorls of scalelike leaves; some yield heavy hardwood
she-oak - any of several Australian trees of the genus Casuarina
beefwood - any of several Australian trees of the genus Casuarina yielding heavy hard red wood used in cabinetwork