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LIST OF FAST-GROWING TYPES VALUABLE FOR PRODUC-ING SCREEN EFFECTS These groups contain the very fastest growing and most temporarytypes of trees and shrubs, and the more rapid-growing types of treesand shrubs often used in permanent plantings. Material may beselected from these groups when an immediate foliage effect is desired. A. Trees: Acer negundo Phellodendron amurense Box Elder Chinese Cork Tree Acer saccharinum Picea excelsa Silver Maple Norway Spruce |
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