Mount Si Natural Resources Conservation Area Vascular Plant List
Courtesy of Department of Natural Resources Natural Areas and Natural Heritage Program staff and the Washington Native Plant Society, from a study by Lois Kemp, 1995. Nomenclature follows Flora of the Pacific Northwest 2nd Edition (2018).
* - Introduced
Abies amabilis Pacific silver fir Pinaceae Abies grandis Grand fir Pinaceae Abies lasiocarpa Sub-alpine fir Pinaceae Abies procera Noble fir Pinaceae Acer circinatum Vine maple Sapindaceae Acer macrophyllum Big-leaf maple Sapindaceae Achillea millefolium Yarrow Asteraceae Achlys triphylla Vanilla leaf Berberidaceae Acmispon parviflorus Miniature lotus Fabaceae Actaea rubra Baneberry Ranunculaceae Adenocaulon bicolor Pathfinder Asteraceae Adiantum aleuticum Maidenhair fern Pteridaceae Agrostis capillaris* Colonial bentgrass Poaceae Agrostis exarata* Spike bentgrass Poaceae Agrostis pallens Thin bentgrass Poaceae Agrostis scabra Tickle-grass Poaceae Agrostis stolonifera* Red top Poaceae Agrostis variabilis Variable bentgrass Poaceae Aira caryophyllea* Silver hairgrass Poaceae Alnus rubra Red alder Betulaceae Alnus viridis ssp. sinuata Sitka alder Betulaceae Amelanchier alnifolia Serviceberry Rosaceae Anaphalis margaritacea Pearly everlasting Asteraceae Angelica genuflexa Kneeling angelica Apiaceae Antennaria neglecta Field pussy-toes Asteraceae Antennaria racemosa Raceme pussy-toes Asteraceae Anthoxanthum odoratum* Sweet vernalgrass Poaceae Aquilegia formosa Red columbine Ranunculaceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
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Arabis eschscholtziana Hairy rockcress Brassicaceae Arbutus menziesii Pacific madrone Ericaceae Arctostaphylos columbiana Bristly manzanita Ericaceae Arctostaphylos uva-ursi Bearberry Ericaceae Arnica chamissonis Meadow arnica Asteraceae Arnica latifolia Mountain arnica Asteraceae Artemisia furcata Three-forked artemisia Asteraceae Artemisia suksdorfii Suksdorf's sagewort Asteraceae Aruncus dioicus Goatsbeard Rosaceae Asarum caudatum Wild ginger Aristolochiaceae Aspidotis densa Indian's dream fern Pteridaceae Asplenium trichomanes Maidenhair spleenwort Aspleniaceae Athyrium filix-femina Lady fern Athyriaceae Bistorta bistortoides Mountain bistort Polygonaceae Boykinia occidentalis Coast boykinia Saxifragaceae Bromus sitchensis var. carinatus California brome Poaceae Bromus sitchensis Alaska brome Poaceae Bromus vulgaris Narrow-leaf brome Poaceae Buddleja davidii Butterfly bush Scrophulariaceae Calamagrostis canadensis Bluejoint Poaceae Calamagrostis sesquiflora 1 &1/2 flowered reedgrass Poaceae Callitriche stagnalis Pond water-starwort Plantaginaceae Callitropsis nootkatensis Alaska cedar Cupressaceae Caltha biflora White marshmarigold Ranunculaceae Campanula rotundifolia Common harebell Campanulaceae Campanula scouleri Scouler's harebell Campanulaceae Cardamine oligosperma Little western bittercress Brassicaceae Carex brunnescens Brown sedge Cyperaceae Carex deweyana Dewey's sedge Cyperaceae Carex hendersonii Henderson's sedge Cyperaceae Carex interior Inland sedge Cyperaceae Carex kelloggii Lenticular sedge Cyperaceae Carex laeviculmis Smooth-stemmed sedge Cyperaceae Carex mertensii Merten's sedge Cyperaceae Carex microptera Small-winged sedge Cyperaceae Carex nigricans Black alpine sedge Cyperaceae Carex obnupta Slough sedge Cyperaceae Carex pachystachya Pachystachy sedge Cyperaceae Carex utriculata Beaked sedge Cyperaceae Carex vesicaria Inflated sedge Cyperaceae Cassiope mertensiana White mountain heather Ericaceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
2 Castilleja hispida Harsh paintbrush Orobanchaceae Castilleja miniata Scarlet paintbrush Orobanchaceae Ceanothus sanguineus Redstem ceanothus Rhamnaceae Cerastium arvense Field chickweed Caryophyllaceae Chamaenerion angustifolium Fireweed Onagraceae Chimaphila menziesii Little pipsissewa Ericaceae Chimaphila umbellata Pipsissewa Ericaceae Circaea alpina Enchanter's nightshade Onagraceae Cirsium arvense* Canada thistle Asteraceae Cirsium brevistylum Indian thistle Asteraceae Cirsium vulgare* Bull thistle Asteraceae Claytonia sibirica Candyflower Montiaceae Clintonia uniflora Queen's cup Liliaceae Collomia heterophylla Varied-leaf collomia Polemoniaceae Conium maculatum* Poison hemlock Apiaceae Corallorhiza maculata Spotted coral-root Orchidaceae Corallorhiza striata Striped coral-root Orchidaceae Cornus nuttallii Pacific dogwood Cornaceae Cornus unalaschkensis Bunchberry Cornaceae Corylus cornuta Hazelnut Betulaceae Cryptogramma crispa Parsley fern Pteridaceae Cystopteris fragilis Fragile fern Cystopteridaceae Cytisus scoparius* Scot's broom Fabaceae Dactylis glomerata* Orchardgrass Poaceae Danthonia spicata Poverty danthonia Poaceae Deschampsia cespitosa Tufted hairgrass Poaceae Deschampsia elongata Slender hairgrass Poaceae Dianthus armeria* Grass pink Caryophyllaceae Dicentra formosa Western bleeding heart Papaveraceae Dichanthelium acuminatum Western witchgrass Poaceae Digitalis purpurea* Foxglove Plantaginaceae Diphasiastrum complanatum Ground-cedar Lycopodiaceae Diphasiastrum sitchense Alaska clubmoss Lycopodiaceae Dodecatheon jeffreyi Jeffrey's shooting star Primulaceae Dryopteris expansa Spreading wood-fern Dryopteridaceae Elliottia pyroliflora Copperbush Ericaceae Elymus glaucus Western ryegrass Poaceae Elymus hirsutus Hairy ryegrass Poaceae Epilobium alpinum Alpine willow-herb Onagraceae Epilobium ciliatum Watson's willowherb Onagraceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
3 Epilobium glandulosum Common willowherb Onagraceae Equisetum arvense Common horsetail Equisetaceae Equisetum fluviatile Water horsetail Equisetaceae Equisetum telmateia Giant horsetail Equisetaceae Erigeron annuus Annual fleabane Asteraceae Erigeron peregrinus Subalpine daisy Asteraceae Erigeron philadelphicus Philadelphia daisy Asteraceae Eriophyllum lanatum Oregon sunshine Asteraceae Festuca roemeri Roemer’s fescue Poaceae Festuca occidentalis Western fescue Poaceae Festuca ovina Sheep fescue Poaceae Festuca subuliflora Crinkle-awn fescue Poaceae Fragaria vesca Woodland strawberry Rosaceae Fragaria virginiana Blueleaf strawberry Rosaceae Frangula purshiana Cascara Rhamnaceae Galium aparine Cleavers Rubiaceae Galium kamtschaticum Boreal bedstraw Rubiaceae Galium mexicanum ssp. asperulum Rough bedstraw Rubiaceae Galium triflorum Fragrant bedstraw Rubiaceae Gaultheria ovatifolia Slender wintergreen Ericaceae Gaultheria shallon Salal Ericaceae Gentiana calycosa Mountain bog gentian Gentianaceae Geranium robertianum* Stinky Bob Geraniaceae Geum macrophyllum Large-leaved avens Rosaceae Glechoma hederacea* Creeping Charlie Lamiaceae Glyceria elata Tall mannagrass Poaceae Goodyera oblongifolia Rattlesnake-plantain Orchidaceae Gymnocarpium dryopteris Oak fern Cystopteridaceae Hedera helix* English ivy Araliaceae Heracleum lanatum Cow parsnip Apiaceae Heuchera micrantha Small-flowered alumroot Saxifragaceae Hieracium albiflorum White-flowered hawkweed Asteraceae Holcus lanatus* Common velvet grass Poaceae Holodiscus discolor Ocean spray Rosaceae Huperzia selago Fir clubmoss Lycopodiaceae Hydrophyllum tenuipes Pacific waterleaf Hydrophyllaceae Hypericum perforatum* Klamath weed Hypericaceae Hypochaeris radicata* Hairy cat's-ear Asteraceae Ilex aquifolium* English holly Aquifoliaceae Jacobaea vulgaris* Tansy ragwort Asteraceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
4 Juncus alpinoarticulatus Northern rush Juncaceae Juncus articulatus Jointed rush Juncaceae Juncus bulbosus Bulbous rush Juncaceae Juncus drummondii Drummond's rush Juncaceae Juncus effusus Soft rush Juncaceae Juncus ensifolius Daggerleaf rush Juncaceae Juncus filiformis Thread rush Juncaceae Juncus mertensianus Merten's rush Juncaceae Juncus tenuis Slender rush Juncaceae Juniperus communis Mountain juniper Cupressaceae Koeleria macrantha Prairie junegrass Poaceae Lactuca serriola* Prickly lettuce Asteraceae Lapsana communis* Nipplewort Asteraceae Lemna minor Duckweed Araceae Leucanthemum vulgare* Ox-eye daisy Asteraceae Lilium columbianum Tiger lily Liliaceae Linnaea borealis Twinflower Caprifoliaceae Lolium perenne* English ryegrass Poaceae Lomatium martindalei Few-flowered lomatium Apiaceae Lonicera ciliosa Orange honeysuckle Caprifoliaceae Lonicera involucrata Twinberry Caprifoliaceae Lotus corniculatus* Birdsfoot trefoil Fabaceae Luetkea pectinata Partridge foot Rosaceae Luina hypoleuca Silverback luina Asteraceae Lupinus latifolius Broad-leaf lupine Fabaceae Luzula campestris Field woodrush Juncaceae Luzula parviflora Small-flowered woodrush Juncaceae Lycopodium clavatum Running clubmoss Lycopodiaceae Lysichitum americanum Skunk cabbage Araceae Lysimachia latifolia Broadleaved starflower Primulaceae Mahonia nervosa Cascade Oregongrape Berberidaceae Maianthemum dilatatum False lily-of-the-valley Asparagaceae Maianthemum racemosum False Solomon's seal Asparagaceae Maianthemum stellatum Star-flowered Solomon's seal Asparagaceae Malus fusca Crabapple Rosaceae Melica bulbosa Onion-grass Poaceae Melica subulata Alaska Onion-grass Poaceae Mertensia ciliata Broad-leaf bluebells Boraginaceae Micranthes ferruginea Rusty saxifrage Saxifragaceae Micranthes nelsoniana Dotted saxifrage Saxifragaceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
5 Moehringia macrophylla Big-leaf sandwort Caryophyllaceae Monotropa hypopitys Pinesap Ericaceae Monotropa uniflora Single-flowered Indian pipe Ericaceae Montia parvifolia Streambank spring beauty Portulacaceae Mycelis muralis* Wall lettuce Asteraceae Myosotis sylvatica Wood forget-me-not Boraginaceae Myriopteris gracillima Lace fern Pteridaceae Nabalus alatus Western rattlesnake-root Asteraceae Nemophila parviflora Small-flowered nemophila Hydrophyllaceae Nothochelone nemorosa Woodland beard-tongue Plantaginaceae Oemleria cerasiformus Indian plum Rosaceae Oenanthe sarmentosa Water parsley Apiaceae Oplopanax horridus Devil's club Araliaceae Orthilia secunda One-sided wintergreen Ericaceae Osmorhiza berteroi Mountain sweet-cicely Apiaceae Paxistima myrsinites Mountain box Celastraceae Pectiantia breweri Brewer's miterwort Saxifragaceae Pectiantia pentandra Alpine miterwort Saxifragaceae Penstemon davidsonii Davidson's penstemon Plantaginaceae Persicaria maculosa Heartweed Polygonaceae Petasites frigidus Coltsfoot Asteraceae Phalaris arundinacea* Reed canarygrass Poaceae Phegopteris connectilis Beech fern Thelypteridaceae Philadelphus lewisii Mock-orange Hydrangeaceae Phlox diffusa Spreading phlox Polemoniaceae Phyllodoce empetriformis Red mountain heather Ericaceae Physocarpus capitatus Pacific ninebark Rosaceae Picea sitchensis Sitka spruce Pinaceae Pinus contorta Lodgepole pine Pinaceae Pinus monticola Western white pine Pinaceae Plantago lanceolata* English plantain Plantaginaceae Plantago major* Common plantain Plantaginaceae Platanthera stricta Slender bog-orchid Orchidaceae Poa annua Annual bluegrass Poaceae Poa compressa Canadian bluegrass Poaceae Poa palustris Fowl meadow-grass Poaceae Poa pratensis* Kentucky bluegrass Poaceae Podagrostis thurberiana Thurber’s bentgrass Poaceae Polygonum minimum Leafy dwarf knotweed Polygonaceae Polypodium glycyrrhiza Licorice fern Polypodiaceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
6 Polypodium hesperium Polypody Polypodiaceae Polystichum munitum Sword fern Dryopteridaceae Populus trichocarpa Black cottonwood Salicaceae Potamogeton natans Floating-leaf pondweed Potamogetonaceae Prosartes hookeri Hooker fairy-bell Liliaceae Prunella vulgaris Self-heal Lamiaceae Prunus emarginata Bitter cherry Rosaceae Pseudotsuga menziesii Douglas fir Pinaceae Pteridium aquilinum Bracken Dennstaedtiaceae Pterospora andromedea Pinedrops Ericaceae Pyrola asarifolia Pink wintergreen Ericaceae Pyrola picta White-veined wintergreen Ericaceae Ranunculus aquatilis Water buttercup Ranunculaceae Ranunculus occidentalis Western buttercup Ranunculaceae Ranunculus orthorhynchus Straight-beak buttercup Ranunculaceae Ranunculus repens* Creeping buttercup Ranunculaceae Ranunculus uncinatus Little buttercup Ranunculaceae Rhododendron menziesii Fool's huckleberry Ericaceae Ribes acerifolium Maple-leaf currant Grossulariaceae Ribes bracteosum Stink currant Grossulariaceae Ribes lacustre Prickly currant Grossulariaceae Ribes sanguineum Red-flowered currant Grossulariaceae Rosa gymnocarpa Baldhip rose Rosaceae Rubus bifrons* Himalayan blackberry Rosaceae Rubus laciniatus* Evergreen blackberry Rosaceae Rubus lasiococcus Dwarf bramble Rosaceae Rubus leucodermis Blackcap Rosaceae Rubus nutkanus Thimbleberry Rosaceae Rubus pedatus Strawberry bramble Rosaceae Rubus spectabilis Salmonberry Rosaceae Rubus ursinus Wild blackberry Rosaceae Rumex acetocella* Sheep sorrel Polygonaceae Rumex crispus* Sour dock Polygonaceae Rumex obtusifolius Broad-leaved dock Polygonaceae Sagina procumbens Procumbant pearlwort Caryophyllaceae Salix lasiandra Pacific willow Salicaceae Salix scouleriana Scouler willow Salicaceae Salix sitchensis Sitka willow Salicaceae Sambucus cerulea Blue elderberry Caprifoliaceae Sambucus racemosa Red elderberry Caprifoliaceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
7 Saxifraga bronchialis Spotted saxifrage Saxifragaceae Saxifraga mertensiana Merten's saxifrage Saxifragaceae Schedonorus arundinaceus * Tall fescue Poaceae Scirpus cyperinus Wool-grass Cyperaceae Scirpus microcarpus Small-flowered bulrush Cyperaceae Sedum oreganum Oregon stonecrop Crassulaceae Sedum spathulifolium Broadleaved stonecrop Crassulaceae Selaginella wallacei Wallace's selaginella Selaginellaceae Senecio sylvaticus* Wood groundsel Asteraceae Senecio triangularis Arrowleaf groundsel Asteraceae Solanum dulcamara* Bittersweet nightshade Solanaceae Solidago canadensis Meadow goldenrod Asteraceae Solidago multiradiata Northern goldenrod Asteraceae Sonchus arvensis* Field sowthistle Asteraceae Sorbus aucuparia* European mountain-ash Rosaceae Sorbus sitchensis Sitka mountain-ash Rosaceae Sparganium sp. Bur-reed Sparganiaceae Spiraea douglasii Hardhack Rosaceae Spiraea lucida Birch-leafed spirea Rosaceae Spiraea splendens Rosy spirea Rosaceae Spiranthes romanzoffiana Hooded ladies-tresses Orchidaceae Stachys cooleyae Cooley's hedge-nettle Lamiaceae Stellaria calycantha Northern starwort Caryophyllaceae Stellaria crispa Crisped starwort Caryophyllaceae Stellaria media* Common chickweed Caryophyllaceae Streptopus amplexifolius Clasping-leaved twisted-stalk Liliaceae Streptopus lanceolatus Rosy twisted-stalk Liliaceae Struthiopteris spicant Deer fern Blechnaceae Symphoricarpos albus Common snowberry Caprifoliaceae Symphyotrichum foliaceum Leafy aster Asteraceae Taraxacum officinale* Dandelion Asteraceae Taxus brevifolia Western yew Taxaceae Thuja plicata Western red cedar Cupressaceae Tiarella trifoliata Foamflower Saxifragaceae Tolmiea menziesii Youth-on-age Saxifragaceae Torreyochloa pallida var. pauciflora Weak alkaligrass Poaceae Triantha glutinosa Bog lily Tofieldiaceae Trifolium campestre * Hop clover Fabaceae Trifolium pratense* Red clover Fabaceae Trifolium repens* White clover Fabaceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
8 Trillium ovatum White trillium Liliaceae Trisetum canescens Tall trisetum Poaceae Trisetum cernuum Nodding trisetum Poaceae Triteleia hyacinthina Hyacinth brodiaea Asparagaceae Tsuga heterophylla Western hemlock Pinaceae Tsuga mertensiana Mountain hemlock Pinaceae Typha latifolia Common cattail Typhaceae Urtica dioica Stinging nettle Urticaceae Vaccinium deliciosum Cascade huckleberry Ericaceae Vaccinium membranaceum Mountain huckleberry Ericaceae Vaccinium ovalifolium Oval-leaf blueberry Ericaceae Vaccinium ovalifolium Oval-leafed huckleberry Ericaceae Vaccinium parvifolium Red huckleberry Ericaceae Vahlodea atropurpurea Mountain hairgrass Poaceae Valeriana sitchensis Sitka valerian Valerianaceae Veratrum viride Green false hellebore Melanthiaceae Verbascum thapsus* Common mullein Scrophulariaceae Veronica americana American brooklime Scrophulariaceae Veronica officinalis* Common speedwell Scrophulariaceae Veronica serpyllifolia Thyme-leaf speedwell Scrophulariaceae Viola glabella Stream violet Violaceae Viola palustris Marsh violet Violaceae Viola sempervirens Evergreen violet Violaceae Vulpia bromoides* Barren fescue Poaceae Vulpia myuros* Rat-tail fescue Poaceae Woodsia oregana Oregon woodsia Woodsiaceae Xerophyllum tenax Beargrass Melanthiaceae
REMOVAL OR COLLECTION OF PLANTS IS NOT PERMITTED EXCEPT AS PART OF A RESEARCH OR EDUCATIONAL PROJECT APPROVED BY THE NATURAL AREAS PROGRAM.
DEPARTMENT OF Natural Areas Program (360) 902-1600 NATURAL RESOURCES PO Box 47014 Olympia, WA 98504
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