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Sandy River, Northern Oregon
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Impenetrable tangle: Inside a thicket of Japanese knotweed, you find a doghair network of
branches that provides little cover for wildlife--the branches are even unsuitable for most birds seeking nesting sites! At this location, the accumulation of dead knotweed canes from previous years was 24 inches deep. Native plants were not found here. (Photograph courtesy of Kyle Strauss.) |
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The Global Invasive Species Team |  |
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Updated January 2005
©The Nature Conservancy, 2000