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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 Grasslands

  • Roemer’s fescue > 10%
    • Showy plectritis > 5% ....................................................................... FERO-PLCO
    • Great camas > 5% ............................................................................ FERO-CALE
    • Red fescue > 5% and Indian’s dream present ............................. FERU-FERO-ASDE
    • White-top aster, houndstongue hawkweed, prairie lupine, Idaho blue-eyed grass,
      or sickle-keeled lupine present ............................................................. FERO-SERI
    • Field chickweed present, and showy fleabane, dune goldenrod or Howell’s
      brodiaea present; deep soils .................................................... FERO-CAQU-CEAR
    • Field chickweed, Wallace’s selaginella, prairie junegrass, Indian’s dream, or
      blue wildrye present; shallow soils ......................................... FERO-(CEAR-KOMA)

  • Red fescue >5%
    • Roemer’s fescue > 1% and Indian’s dream present .................... FERU-FERO-ASDE
    • Great camas or Oregon gumweed present; located on bluffs or shallow soils
      near saltwater ....................................................................... FERU-(GRST-CALE)
    • California danthonia > 10% ................................................................ DACA-ERLA

  • California danthonia > 10% ........................................................................ DACA-ERLA

  • Not as above.......................................... Non-native or unclassified herbaceous vegetation


View association table (species list for each association, in MS Excel format) for Grasslands

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