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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. |
About Invasive Species | |
Noxious Weed Project Learn how to collect specific noxious weeds for Washington herbaria. |
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WNPS Native Plant Stewards Survey Invasive Plants on High Country Trails by Gary Smith, Stewardship Chair |