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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
Acknowledgements
References

Dominance types

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

Key to Douglas-fir – Pacific madrone Forests

  • Evergreen huckleberry > 5% ............................................................ PSME-ARME/VAOV


  • Salal > 10% ................................................................................... PSME-ARME/GASH


  • Roemer's fescue + red fescue >10% and Indian's dream or Rocky Mountain juniper present
    .............................................................................................. PSME-JUSC/FEST-ASDE


  • Oceanspray, common snowberry, hairy honeysuckle or western fescue > 1%
    ............................................................................................... PSME-ARME/HODI/LOHI


  • Not as above .......................................................... review association descriptions,
    ........ may be non-native or part of Douglas-fir – western hemlock – western redcedar Forest


View association table (species list for each association, in MS Excel format) for Douglas-fir – Pacific madrone Forests

Washington Natural Heritage Program - www.dnr.wa.gov/ResearchScience/Topics/NaturalHeritage/Pages/amp_nh.aspx
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Washington Dept. of Natural Resources, PO Box 47014, Olympia, WA 98504-7014