| 释义 | 
		Definition of river birch in English: river birchnoun A North American birch with peeling reddish-brown or orange bark. Betula nigra, family Betulaceae  Example sentencesExamples -  The native river birch is a clean, graceful tree that provides bright/filtered shade.
 -  Experts recommend herbaceous perennials - like cardinal flower, Joe-Pye weed, and daylilies - as well as woody plants such as river birch, button bush, and sweet pepperbush.
 -  Residents are also encouraged to plant river birch.
 -  The three worked closely together to ensure that the new landscape would harmonize with a surrounding woodland of aspens, Douglas firs, ponderosa pines, and river birches.
 -  The Sidwells enlarged the patio and covered it with an arbor; created perimeter beds of mixed shrubs and planted a vegetable garden as well as a graceful, native river birch and an ‘Oklahoma’ redbud.
 -  Over there on the edge of the creek, by the tree I learned to call ironwood but whose accepted name is river birch, was a small eastern cedar with a trunk about the size of my middle finger.
 -  Another Maryland tree, a 81-foot river birch in historic Belt Woods, has little chance of survival, says Pam.
 -  The floodplains and islands of the Wisconsin and Mississippi rivers were forested with low-lying cottonwood and willow, grading into river birch and swamp white oak, with silver maple, American elm, and ash invading higher stands.
 
    Definition of river birch in US English: river birchnoun A North American birch with peeling reddish-brown or orange bark. Betula nigra, family Betulaceae  Example sentencesExamples -  The Sidwells enlarged the patio and covered it with an arbor; created perimeter beds of mixed shrubs and planted a vegetable garden as well as a graceful, native river birch and an ‘Oklahoma’ redbud.
 -  Residents are also encouraged to plant river birch.
 -  Over there on the edge of the creek, by the tree I learned to call ironwood but whose accepted name is river birch, was a small eastern cedar with a trunk about the size of my middle finger.
 -  The three worked closely together to ensure that the new landscape would harmonize with a surrounding woodland of aspens, Douglas firs, ponderosa pines, and river birches.
 -  Experts recommend herbaceous perennials - like cardinal flower, Joe-Pye weed, and daylilies - as well as woody plants such as river birch, button bush, and sweet pepperbush.
 -  The floodplains and islands of the Wisconsin and Mississippi rivers were forested with low-lying cottonwood and willow, grading into river birch and swamp white oak, with silver maple, American elm, and ash invading higher stands.
 -  Another Maryland tree, a 81-foot river birch in historic Belt Woods, has little chance of survival, says Pam.
 -  The native river birch is a clean, graceful tree that provides bright/filtered shade.
 
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