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  1. Field guide to riparian plant communities in northwestern Oregon

    This field guide combines classifications of common streamside plant communities and native freshwater wetland communities in Northwest Oregon. It is a condensed version of two separate works which are both...

  2. Native freshwater wetland plant associations of northwestern Oregon

    This guide provides keys, descriptions, and stand tables for 122 native freshwater plant associations (14 forest and woodland, 28 shrub, 78 herbaceous, 2 nonvascular) in northwestern Oregon, based on analysis...

  3. Rare, Threatened and Endangered Plants and Animals of Oregon

    Extinction is a natural process. Today, however, plant and animal species are disappearing world-wide at an accelerated pace. Based on current trends, half of the species on earth will be extinct within the...

  4. Classification of native vegetation of Oregon

    This classification lists the native plant associations known to occur in Oregon, and includes both successional and climax vegetation types that were an important part of the presettlement landscape of Oregon....

  5. Native wetland, riparian, and upland plant communities and their biota in the Willamette Valley, Oregon

    As part of the Willamette Basin Geographic Initiative Program, the Environmental Protection Agency (EPA) funded The Nature Conservancy of Oregon to inventory, classify, and map native wetland and riparian plant...

  6. Rare, Threatened and Endangered Species of Oregon

    Extinction is a natural process. Today, however, plant and animal species are disappearing world-wide at an accelerated pace. Based on current trends, half of the species on earth will be extinct within the...

  7. Rare, Threatened and Endangered Species of Oregon

    Extinction is a natural process. Today, however, plant and animal species are disappearing world-wide at an accelerated pace. Based on current trends, half of the species on earth will be extinct within the...

  8. Rare, Threatened and Endangered Species of Oregon

    Extinction is a natural process. Today, however, plant and animal species are disappearing world-wide at an accelerated pace. Based on current trends, half of the species on earth will be extinct within the...

  9. Rare Plant Associations, Oregon Dunes National Recreation Area, Sutton Recreation Area, and Heceta Sand Dunes ACEC/ONA

    In 2011, USFS requested the services of Portland State University's Oregon Biodiversity

  10. Sphagnum fens on the Oregon coast: diminishing habitat and need for management

    Report to U.S. Fish and Wildlife Service, Region 1, Portland, Oregon

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