Mt. Si, King County, wa



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Mt. Si, King County, WA.

List covers plants found in the Mt. Si Natural Resource Conservation Area near North Bend, WA. Study by Lois Kemp, 1995. 336 spp.


These lists represent the work of different WNPS members over the years.

Their accuracy has not been verified by the Washington Native Plant Society.

We offer these lists to individuals as a tool to enhance the enjoyment and study of native plants.
Vascular Plant List

Mt. Si

* - Introduced



Scientific Name Common Name Family Name
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 Aceraceae

Acer macrophyllum Big-leaf maple Aceraceae

Achillea millifolium Yarrow Asteraceae

Achlys triphylla Vanilla leaf Berberidaceae

Actaea rubra Baneberry Ranunculaceae

Adenocaulon bicolor Pathfinder Asteraceae

Adiantum pedatum Maidenhair fern Polypodiaceae

Agrostis alba* Red top Poaceae

Agrostis diegoensis Thin bentgrass Poaceae

Agrostis exarata* Spike bentgrass Poaceae

Agrostis scabra Tickle-grass Poaceae

Agrostis tenuis* Colonial bentgrass Poaceae

Agrostis thurberiana Thurber bentgrass Poaceae

Agrostis variabilis Variable bentgrass Poaceae

Aira caryophyllea* Silver hairgrass Poaceae

Alnus rubra Red alder Betulaceae

Alnus 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

Arabis hirsuta Hairy rockcress Brassicaceae

Arbutus menziesii Pacific madrone Ericaceae

Arctostaphylos columbiana Bristly manzanita Ericaceae

Arctostaphylos uva-ursi Bearberry Ericaceae

Arenaria macrophylla Big-leaf sandwort Caryophyllaceae

Arnica chamissonis Meadow arnica Asteraceae

Arnica latifolia Mountain arnica Asteraceae

Artemesia suksdorfii Suksdorf's sagewort Asteraceae

Artemesia trifurcata Three-forked artemesia Asteraceae

Aruncus sylvester Goatsbeard Rosaceae

Asarum caudatum Wild ginger Aristolochiaceae

Aspidotus densa Indian's dream fern Polypodiaceae

Asplenium trichomanes Maidenhair spleenwort Polypodiaceae

Aster foliaceus Leafy aster Asteraceae

Athyrium filix-femina Lady fern Polypodiaceae

Berberis nervosa Cascade Oregongrape Berberidaceae

Blechnum spicant Deer fern Polypodiaceae

Boykinia elata Coast boykinia Saxifragaceae

Brodiaea hyacinthina Hyacinth brodiaea Liliaceae

Bromus carinatus California brome Poaceae

Bromus sitchensis Alaska brome Poaceae

Bromus vulgaris Narrow-leaf brome Poaceae


Buddleja davidii Butterfly bush Buddlejaceae

Calamagrostis canadensis Bluejoint Poaceae

Calamagrostis sequiflora 1 &1/2 flowered reedgrass Poaceae

Callitriche stagnalis Pond water-starwort Callitrichaceae

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 laeviculmis Smooth-stemmed sedge Cyperaceae

Carex lenticularis Lenticular 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

Castilleja hispida Harsh paintbrush Scrophulariaceae

Castilleja miniata Scarlet paintbrush Scrophulariaceae

Ceanothus sanguineus Redstem ceanothus Rhamnaceae

Cerastium arvense Field chickweed Caryophyllaceae

Chamaecyparis nookatensis Alaska cedar Cupressaceae

Cheilanthes gracillima Lace fern Polypodiaceae

Chimaphila menziesii Little pipsissewa Ericaceae

Chimaphila umbellata Pipsissewa Ericaceae

Circea alpina Enchanter's nightshade Onagraceae

Cirsium arvense* Canada thistle Asteraceae

Cirsium brevistylum Indian thistle Asteraceae

Cirsium vulgare* Bull thistle Asteraceae

Cladothamnus pyroliflorus Copperbush Ericaceae

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 unalaschensis Bunchberry Cornaceae

Corylus cornuta Hazelnut Betulaceae

Cryptogramma crispa Parsley fern Polypodiaceae

Cystopteris fragilis Fragile fern Polypodiaceae

Cytisus scoparius* Scot's broom Fabaceae

Dactylis glomerata* Orchard grass Poaceae

Danthonia spicata Poverty danthonia Poaceae

Deschampsia atropurpurea Mountain hairgrass Poaceae

Deschampsia caespitosa Tufted hairgrass Poaceae

Deschampsia elongata Slender hairgrass Poaceae

Dianthus armeria* Grass pink Caryophyllaceae

Dicentra formosa Bleeding heart Fumariaceae

Digatalis purpurea* Foxglove Scrophulariaceae

Disporum hookeri Hooker fairy-bell Liliaceae

Dodecatheon jeffreyi Jeffrey's shooting star Primulaceae

Dryopteris austriaca Spreading wood-fern Polypodiaceae

Elymus glaucus Western ryegrass Poaceae

Elymus hirsutus Hairy ryegrass Poaceae

Epilobium alpinum Alpine willow-herb Onagraceae

Epilobium angustifolium Fireweed Onagraceae

Epilobium glandulosum Common willow-herb Onagraceae

Epilobium watsonii Watson's willow-herb Onagraceae

Equisetum arvense Common horsetail Equisetaceae

Equisetum fluviatale Swamp horsetail Equisetaceae

Equisetum telmateia Giant horsetail Equisetaceae

Erigeron annuus Annual fleabane Asteraceae

Erigeron peregrinus Subalpine daisy Asteraceae

Erigeron philadelphicus Phidelphia daisy Asteraceae

Eriophyllum lanatum Oregon sunshine Asteraceae

Festuca arundinacea* Tall fescue Poaceae

Festuca bromoides* Barren fescue Poaceae

Festuca idahoensis Blue bunchgrass Poaceae

Festuca myuros* Rat-tail fescue Poaceae

Festuca occidentalis Western fescue Poaceae

Festuca ovina Sheep fescue Poaceae

Festuca subuliflora Crinkle-awn fescue Poaceae

Fragaria vesca Wild strawberry Rosaceae

Fragaria virginiana Woods strawberry Rosaceae

Galium aparine Cleavers Rubiaceae

Galium asperrimum Rough bedstraw Rubiaceae

Galium kamyschaticum Boreal 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

Glecoma hederacea* Creeping Charlie Lamiaceae

Glyceria elata Tall mannagrass Poaceae

Goodyera oblongifolia Rattlesnake-plantain Orchidaceae

Gymnocarpium dryopteris Oak fern Polypodiaceae

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

Hydrophyllum tenuipes Pacific waterleaf Hydrophyllaceae

Hypericum perforatum* Klamath weed Hypericaceae

Hypochaeris radicata* Hairy cat's-ear Asteraceae

Hypopites monotropa Pinesap Ericaceae

Ilex aquifolium* English holly Aquifoliaceae

Juncus alpinus Norhern rush Juncaceae

Juncus articulatus Jointed 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 supinus Bulbous rush Juncaceae

Juncus tenuis Slender rush Juncaceae

Juniperus communis Mountain juniper Cupressaceae

Koelaria cristata Prairie junegrass Poaceae

Lactuca muralis* Wall lettuce Asteraceae

Lactuca serriola* Prickly lettuce Asteraceae

Lapsana communis* Nipplewort Asteraceae

Lemna minor Duckweed Lemnaceae

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

Lotus micranthus Miniature lotus 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 camplanatum Ground cedar Lycopodiaceae

Lycopodium clavatum Running clubmoss Lycopodiaceae

Lycopodium selago Fir clubmoss Lycopodiaceae

Lycopodium sitchense Alaska clubmoss Lycopodiaceae

Lysichitum americanum Skunk cabbage Araceae

Maianthemum dilatatum False lily-of-the-valley Liliaceae

Melica bulbosa Onion-grass Poaceae

Melica subulata Alaska Onion-grass Poaceae

Menziesia feruginea Fool's huckleberry Ericaceae

Mertensia ciliata Broad-leaf bluebells Boraginaceae

Mitella breweri Brewer's miterwort Saxifragaceae

Mitella pentandra Alpine miterwort Saxifragaceae

Monotropa uniflora Single-flowered indian pipe Ericaceae

Montia parvifolia Streambank spring beauty Portulacaceae

Montia siberica Candyflower Portulacaceae

Myosotis sylvatica Wood forget-me-not Boraginaceae

Nemophila parviflora Small-flowered nemophila Hydrophyllaceae

Nothochelone nemerosa Woodland beard-tongue Scrophulariaceae

Oemlaria cerasiformus Indian plum Rosaceae

Oenanthe sarmentosa Water parsley Apiaceae

Oplopanax horridum Devil's club Araliaceae

Orthilia secunda One-sided wintergreen Ericaceae

Osmorhiza chilensis Mountain sweet-cicely Apiaceae

Pachistima myrsinites Mountain box Celastraceae

Panicum occidentale Western witchgrass Poaceae

Penstemon davidsonii Davidson's penstemon Scrophulariaceae

Petasites frigidus Coltsfoot Asteraceae

Phalaris arundinacea* Reed canarygrass Poaceae

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 saccata 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

Polygonum bistortoides Mountain bistort Polygonaceae

Polygonum minimum Leafy dwarf knotweed Polygonaceae

Polygonum persicaria Heartweed Polygonaceae

Polypodium glycyrrhiza Licorice fern Polypodiaceae

Polypodium hesperium Polypody Polypodiaceae

Polystichum munitum Sword fern Polypodiaceae

Populus trichocarpa Black cottonwood Salicaceae

Potamogeton natans Floating-leaf pondweed Potamogetonaceae

Prenanthes alata Wetern rattlesnake-root Asteraceae

Prunella vulgaris Self-heal Lamiaceae

Prunus emarginata Bitter cherry Rosaceae

Pseudotsuga menziesii Douglas fir Pinaceae

Pteridium aquilinum Bracken Polypodiaceae

Pterospora andromedea Pinedrops Ericaceae

Puccinellia pauciflora Weak alkaligrass Poaceae

Pyrola asarifolia Pink wintergreen Ericaceae

Pyrola picta White-veined wintergreen Ericaceae

Pyrus fusca Crabapple Rosaceae

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

Rhamnus purshiana Cascara Rhamnaceae

Ribes bracteosum Stink currant Grossulariaceae

Ribes howellii Maple-leaf currant Grossulariaceae

Ribes lacustre Prickly currant Grossulariaceae

Ribes sanguinium Red-flowered currant Grossulariaceae

Rosa gymnocarpa Baldhip rose Rosaceae

Rubus discolor* Himalayan blackberry Rosaceae

Rubus laciniatus* Evergreen blackberry Rosaceae

Rubus lasiococcus Dwarf bramble Rosaceae

Rubus leucodermis Blackcap Rosaceae

Rubus parviflorus Thimbleberry Rosaceae

Rubus pedatus Strawberry bramble Rosaceae

Rubus spectabilus 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

Saxifraga bronchialis Spotted saxifrage Saxifragaceae

Saxifraga ferruginea Rusty saxifrage Saxifragaceae

Saxifraga mertensiana Merten's saxifrage Saxifragaceae

Saxifraga punctata Dotted saxifrage Saxifragaceae

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 jacobaea* Tansy ragwort Asteraceae

Senecio sylvaticus* Wood groundsel Asteraceae

Senecio triangularis Arrowleaf groundsel Asteraceae

Smilacina racemosa False Solomon's seal Liliaceae

Smilacina stellata Star-flowered Solomon's seal Liliaceae

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 betulifolia Birch-leafed spirea Rosaceae

Spiraea densiflora Rosy spirea Rosaceae

Spiraea douglasii Hardhack 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 roseus Rosy twisted-stalk Liliaceae

Symphoricarpos albus Common snowberry Caprifoliaceae

Taraxacum officinale* Dandelion Asteraceae

Taxus brevifolia Western yew Taxaceae

Thelypteris phegopteris Beech fern Polypodiaceae

Thuja plicata Western red cedar Cupressaceae

Tiarella trifoliata Foamflower Saxifragaceae

Tofieldia glutinosa Bog lily Liliaceae

Tolmia menziesii Youth-on-age Saxifragaceae

Trientalis latifolia Broadleaved starflower Primulaceae

Trifolium pratense* Red clover Fabaceae

Trifolium procumbens* Hop clover Fabaceae

Trifolium repens* White clover Fabaceae

Trillium ovatum White trillium Liliaceae

Trisetum canescens Tall trisetum Poaceae

Trisetum cernuum Nodding trisetum Poaceae

Tsuga heterophylla Western hemlock Pinaceae

Tsuga mertensiana Mountain hemlock Pinaceae

Typha latifolia Common cattail Typhaceae

Urtica dioica Stinging nettle Urticaceae

Vaccinium alaskense Alaska blueberry Ericaceae

Vaccinium deliciosum Cascade huckleberry Ericaceae

Vaccinium membranaceum Mountain huckleberry Ericaceae

Vaccinium ovalifolium Oval-leafed huckleberry Ericaceae

Vaccinium parvifolium Red huckleberry Ericaceae

Valeriana sitchensis Sitka valerian Valerianaceae

Veratrum viride Green false hellebore Liliaceae

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

Woodsia oregana Oregon woodsia Polypodiaceae

Xerophyllum tenax Beargrass Liliaceae




Mt. Si, King County, WA 2/2/2017

WNPS Plant Lists



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