Plant Associations
in Washington's
Puget Trough Ecoregion

• Introduction and Methods
• Instructions for the key
• Key - printer friendly PDF format
• Key - interactive format
• Names and codes used
• Complete species list
• Association tables (species lists for each association)
• Citing This Document
• Acknowledgements
• References

• ACMA-ALRU/POMU-TEGR: big leaf maple - red alder / sword fern - fringecup
• ALRU/POMU: red alder / sword fern
• BEPA-ALRU/POMU: paper birch - red alder / sword fern
• DACA-ERLA: California danthonia - woolly sunflower
• FERO-CALE: Roemer's fescue - great camas
• FERO-CAQU-CEAR: Roemer's fescue - common camas - field chickweed
• FERO-(CEAR-KOMA): Roemer's fescue - (field chickweed - prairie Junegrass)
• FERO-PLCO: Roemer's fescue - rosy plectritis
• FERO-SERI: Roemer's fescue - white-top aster
• FERU-FERO-ASDE: Red fescue - Roemer's fescue - Indian's dream
• FERU-(GRST-CALE): Red fescue - (Oregon gumweed - great camas)
• PICO-PSME/GASH: lodgepole pine - Douglas-fir / salal
• PICO-PSME/MANE: Lodgepole pine - Douglas-fir / dwarf Oregongrape
• PIPO/CAIN-FERO: ponderosa pine / long-stolon sedge - Roemer's fescue
• PSME savanna: Douglas-fir savanna
• PSME-ABGR/COCO/POMU: Douglas-fir - grand fir / beaked hazelnut / sword fern
• PSME-ABGR/FEOC: Douglas-fir - grand fir / western fescue
• PSME-ABGR/GASH: Douglas-fir - grand fir / salal
• PSME-ABGR/HODI/POMU: Douglas-fir - grand fir / oceanspray / sword fern
• PSME-ARME/GASH: Douglas-fir - Pacific madrone / salal
• PSME-ARME/HODI/LOHI: Douglas-fir - Pacific madrone / oceanspray / hairy honeysuckle
• PSME-ARME/VAOV: Douglas-fir - Pacific madrone / evergreen huckleberry
• PSME/COCO/POMU-TITR: Douglas-fir / beaked hazelnut / sword fern - threeleaf foamflower
• PSME/COCO-SYMPH/POMU: Douglas-fir / beaked hazelnut - snowberry / sword fern
• PSME/GASH-HODI: Douglas-fir / salal - oceanspray
• PSME/GASH/POMU: Douglas-fir / salal / sword fern
• PSME/HODI-SYAL: Douglas-fir / oceanspray - common snowberry
• PSME-JUSC/FEST-ASDE: Douglas-fir - Rocky Mountain juniper / fescue - Indian's dream
• PSME/ROGY-HODI: Douglas-fir / baldhip rose - oceanspray
• PSME/SYMPH-AMAL: Douglas-fir / snowberry - serviceberry
• PSME-THPL-(ABGR)/GASH: Douglas-fir - western redcedar - (grand fir) / salal
• PSME-THPL/GASH-MANE/POMU: Douglas-fir - western redcedar / salal - dwarf Oregongrape / sword fern
• PSME-THPL/OXOR: Douglas-fir - western redcedar / Oregon oxalis
• PSME-THPL/RHMA: Douglas-fir - western redcedar / Pacific rhododendron
• PSME-TSHE/GASH-HODI: Douglas-fir - western hemlock / salal - oceanspray
• PSME-TSHE/GASH-MANE: Douglas-fir - western hemlock / salal - dwarf Oregongrape
• PSME-TSHE/GASH/POMU: Douglas-fir - western hemlock / salal / sword fern
• PSME-TSHE/HODI/POMU: Douglas-fir - western hemlock / oceanspray / sword fern
• PSME-TSHE/MANE: Douglas-fir - western hemlock / dwarf Oregongrape
• PSME-TSHE/MANE/POMU: Douglas-fir - western hemlock / dwarf Oregongrape / sword fern
• PSME-TSHE/RHMA-VAOV: Douglas-fir - western hemlock / Pacific rhododendron - evergreen huckleberry
• PSME-TSHE/TITRLA: Douglas-fir - western hemlock / cutleaf foamflower
• PSME-TSHE/VAOV: Douglas-fir - western hemlock / evergreen huckleberry
• PSME-TSHE/VAOV/POMU: Douglas-fir - western hemlock / evergreen huckleberry / sword fern
• QUGA/CAIN-(CAQU): Oregon white oak / long-stolon sedge - (common camas)
• QUGA/FERO: Oregon white oak / Roemer's fescue
• QUGA-(FRLA)/SYAL: Oregon white oak - (Oregon ash) / common snowberry
• QUGA-PSME/SYAL/POMU: Oregon white oak - Douglas-fir / common snowberry / sword fern
• QUGA/SYAL/CAIN: Oregon white oak / common snowberry / long-stolon sedge
• QUGA/VIEL/TODI: Oregon white oak / oval-leaf viburnum / poison-oak
• SHRUBLANDS AND RELATED VEGETATION
• THPL-ABGR/POMU: Western redcedar - grand fir / sword fern
• THPL-TSHE/OPHO/POMU: western redcedar - western hemlock / devils club / sword fern
• TSHE-PSME/POMU-DREX: western hemlock - Douglas-fir / sword fern - spreading woodfern
• UNCLASSIFIED HERBACEOUS VEGETATION