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Home > Invasive Species
Invasive non-native plants are one of the biggest threats to native ecosystems, second only to habitat conversion. Washington’s forested communities, prairies, shrub-steppe, grasslands, riparian and wetland habitats are all vulnerable.
 Purple Loosestrife invasion of Washington wetlands. Copyright 2006. All rights reserved. |
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About Invasive Species |
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Noxious Weed Project Learn how to collect specific noxious weeds for Washington herbaria. |