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Key to Puget Trough Terrestrial Plant Associations

Introduction and Methods
Instructions for the Key
Names and Codes Used
Complete Species List
Association Tables
Citing This Document

Dominance types

Douglas-fir forests
Douglas-fir - grand fir forests
Douglas-fir - Pacific madrone forests
Douglas-fir - western hemlock - western redcedar forests
Lodgepole pine - Douglas-fir forests
Oregon white oak woodlands
Red alder - bigleaf maple forests

Key to Dominance Types

Trees > 25 % cover

Trees < 25% cover

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Washington Dept. of Natural Resources, PO Box 47014, Olympia, WA 98504-7014