Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. List covers plants found along the Columbia River from the Clark County, WA line east to the Deschutes River, OR and up to ten miles north and south of the river. Study by Portland Chapter, ONPS, 1980-83. List by Lois Kemp and Russ Jolly. 946 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. *Introduced species

Scientific Name Common Name Plant Family

Abronia mellifera White sand verbena Nyctaginaceae Achillea millifolium Yarrow Asteraceae Achlys triphylla Vanilla leaf Berberidaceae Actaea rubra Baneberry Ranunculaceae Adenocaulon bicolor Pathfinder Asteraceae Adiantum pedatum Maidenhair fern Polypodiaceae Agoseris aurantiaca Orange agoseris Asteraceae Agoseris grandiflora Large-flowered agoseris Asteraceae Agoseris heterophylla Annual agoseris Asteraceae Agoseris retrorsa Spear-leaf agoseris Asteraceae Alchemilla occidentalis Western lady's-mantle Rosaceae Alisma graminium Narrowleaf waterplantain Alismataceae Alisma plantago-aquatica American waterplantain Alismataceae Alliaria officinalis* Garlic mustard Brassicaceae Allium acuminatum Taper-tip onion Liliaceae Allium amplectans Slim-leaf onion Liliaceae Allium cernuum Nodding onion Liliaceae Allium crenulatum Scalloped onion Liliaceae Allium douglasii Douglas' onion Liliaceae Allotropa virgata Candystick Ericaceae Amaranthus albus* White pigweed Amaranthaceae Amaranthus blitoides Prostrate pigweed Amaranthaceae Amaranthus powellii* Powell's amaranth Amaranthaceae Ambrosia acanthicarpa Bur ragweed Asteraceae Amelanchier alnifolia Serviceberry Rosaceae Ammania coccinea Scarlet ammania Lythraceae Amorpha fruticosa False indigo Fabaceae Amsinckia lycopsoides Bugloss fiddleneck Boraginaceae Amsinckia retrorsa Rigid fiddleneck Boraginaceae Anagallis arvensis* Pimpernel Primulaceae Anaphalis margaritacea Pearly everlasting Asteraceae Anemone deltoidea Columbia windflower Ranunculaceae Anemone lyallii Lyall's anemone Ranunculaceae Anemone multifida Cliff anemone Ranunculaceae Anemone oregana Oregon anemone Ranunculaceae Angelica arguta Sharp-tooth angelica Apiaceae Angelica genuflexa Kneeling angelica Apiaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 1 of 20 Antennaria dimorpha Low pussy-toes Asteraceae Antennaria luzuloides Woodrush pussy-toes Asteraceae Antennaria microphylla Rosy pussy-toes Asteraceae Antennaria neglecta Field pussy-toes Asteraceae Antennaria racemosa Raceme pussy-toes Asteraceae Antennaria stenophylla Narrow-leaf pussy-toes Asteraceae Antennaria umbrinella Umber pussy-toes Asteraceae Anthemis arvensis* Field chamomile Asteraceae Anthemis cotula* Dog fennel Asteraceae Anthemis tinctoria Yellow chamomile Asteraceae Anthriscus scandicina* Chervil Apiaceae Apocynum androsaemifolium Spreading dogbane Apocynaceae Apocynum cannabinum Hemp dogbane Apocynaceae Apocynum medium Western dogbane Apocynaceae Apocynum sibericum Indian hemp Apocynaceae Aquilegia formosa Red columbine Ranunculaceae Arabidopsis thaliana* Thale cress Brassicaceae Arabis furcata Forkhaired rockcress Brassicaceae Arabis glabra Tower mustard Brassicaceae Arabis hirsuta Hairy rockcress Brassicaceae Arabis microphylla Small-leaf rockcress Brassicaceae Arabis sparsiflora Sicklepod rockcress Brassicaceae Arctium minus* Common burdock Asteraceae Arctostaphylos columbiana Bristly manzanita Ericaceae Arctostaphylos nevadensis Kinnikinnik Ericaceae Arctostaphylos uva-ursi Bearberry Ericaceae Arenaria capillaris Thread-leaved sandwort Caryophyllaceae Arenaria franklinii Franklin's sandwort Caryophyllaceae Arenaria macrophylla Big-leaf sandwort Caryophyllaceae Arenaria rubella Reddish sandwort Caryophyllaceae Arenaria serpyllifolia Thyme-leaf sandwort Caryophyllaceae Arenaria stricta Slender sandwort Caryophyllaceae Arnica amplexicaulis Streambank arnica Asteraceae Arnica cordifolia Heart-leaf arnica Asteraceae Arnica discoidea Rayless arnica Asteraceae Arnica latifolia Mountain arnica Asteraceae Artemesia absinthium* Absinthe Asteraceae Artemesia biennis Biennial wormwood Asteraceae Artemesia campestris Northern wormwood Asteraceae Artemesia douglasiana Douglas' sagewort Asteraceae Artemesia dracunculus Tarragon Asteraceae Artemesia lindleyana Columbia River mugwort Asteraceae Artemesia ludoviciana Western mugwort Asteraceae Artemesia rigida Stiff sagebrush Asteraceae Artemesia suksdorfii Suksdorf's sagewort Asteraceae Artemesia tilesii Aleytian mugwort Asteraceae Artemesia tridentata Big sagebrush Asteraceae Aruncus sylvester Goatsbeard Rosaceae Asarum caudatum Wild ginger Aristolochiaceae Asclepias fascicularis Mexican milkweed Asclepiadaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 2 of 20 Asclepias speciosa Showy milkweed Asclepiadaceae Asparagus officinalis* Asparagus Liliaceae Asperula odorata* Sweet woodruff Rubiaceae Aspidotus densa Indian's dream fern Polypodiaceae Asplenium trichomanes Maidenhair spleenwort Polypodiaceae Aster alpigenus Alpine aster Asteraceae Aster eatonii Eaton's aster Asteraceae Aster foliaceus Leafy aster Asteraceae Aster frondosus Alkali aster Asteraceae Aster glaucescens Klickitat aster Asteraceae Aster ledophyllus Cascade aster Asteraceae Aster modestus Great northern aster Asteraceae Aster novae-angliae* New England aster Asteraceae Aster occidentalis Western aster Asteraceae Aster pansus Wreath aster Asteraceae Aster subspictus Douglas' aster Asteraceae Astragalus hoodianus Milk-vetch Fabaceae Astragalus purshii Pursh's milk-vetch Fabaceae Astragalus reventiformis Yakima milk-vetch Fabaceae Astragalus sclerocarpus Stalked-pod milk-vetch Fabaceae Astragalus succumbens Columbia locoweed Fabaceae Athyrium filix-femina Lady fern Polypodiaceae Athysanus pusillus Sandweed Brassicaceae Atriplex rosea Red orache Chenopodiaceae Balsamorhiza deltoidea Puget balsamroot Asteraceae Barbarea orthoceras American wintercress Brassicaceae Barbarea verna Early wintercress Brassicaceae Barbarea vulgaris* Bitter wintercress Brassicaceae Berberis aquifolium Tall Oregongrape Berberidaceae Berberis nervosa Cascade Oregongrape Berberidaceae Berberis repens Creeping Oregongrape Berberidaceae Bidens cernua Nodding beggar-ticks Asteraceae Bidens frondosa Leafy beggar-ticks Asteraceae Blechnum spicant Deer fern Polypodiaceae Boisduvalia densiflora Dense spike-primrose Onagraceae Boisduvalia glabella Smooth spike-primrose Onagraceae Boisduvalia stricta Brook spike-primrose Onagraceae Bolandra oregana Bolandra Saxifragaceae Boykinia elata Coast boykinia Saxifragaceae Brassica campestris* Common mustard Brassicaceae Brassica kaber* Charlock Brassicaceae Brickellia grandiflora Large-flowered brickellia Asteraceae Brodiaea congesta Ookow Liliaceae Brodiaea coronaria Harvest brodiaea Liliaceae Brodiaea howellii Howell's brodiaea Liliaceae Brodiaea hyacinthina Hyacinth brodiaea Liliaceae Callitriche verna Spring water-starwort Callitrichaceae Calochortus macrocarpus Sagebrush mariposa Liliaceae Calochortus subalpinus Subalpine mariposa Liliaceae Caltha biflora White marshmarigold Ranunculaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 3 of 20 Calypso bulbosa Fairy slipper Orchidaceae Camassia leichtlinii Great camas Liliaceae Camassia quamash Common camas Liliaceae Camelina microcarpa* Hairy false-flax Brassicaceae Campanula rotundifolia Common harebell Campanulaceae Campanula scouleri Scouler's harebell Campanulaceae Capsella bursa-pastoris* Shepherd's purse Brassicaceae Cardamine angulata Seaside bittercress Brassicaceae Cardamine breweri Brewer's bittercress Brassicaceae Cardamine integrifolia Milk maids Brassicaceae Cardamine occidentalis Western bittercress Brassicaceae Cardamine oligosperma Little Western bittercress Brassicaceae Cardamine penduliflora Willamette Valley bittercress Brassicaceae Cardamine pennsylvanica Pennsylvania bittercress Brassicaceae Cardamine pulcherrima Spring beauty Brassicaceae Cardaria draba* Hoary cress Brassicaceae Cardaria pubescens* Globepodded hoary cress Brassicaceae Castenopsis chrysophylla Golden chinquapin Fagaceae Castilleja hispida Harsh paintbrush Scrophulariaceae Castilleja miniata Scarlet paintbrush Scrophulariaceae Castilleja rupicola Cliff paintbrush Scrophulariaceae Castilleja suksdorfii Suksdorf's paintbrush Scrophulariaceae Caucalis microcarpa Small bur-parsley Apiaceae Ceanothus integerrimus Deerbrush Rhamnaceae Ceanothus sanguineus Redstem ceanothus Rhamnaceae Ceanothus velutinus Snowbrush Rhamnaceae Centaurea cyanus* Batchelor button Asteraceae Centaurea diffusa* Diffuse knapweed Asteraceae Centaurea jacea* Brown knapweed Asteraceae Centaurea maculosa* Spotted knapweed Asteraceae Centaurea repens* Russian knapweed Asteraceae Centaurea solstitialis* Yellow starthistle Asteraceae Centaurium exaultum Western centaury Gentianaceae Centaurium umbellatum* Common centaury Gentianaceae Cerastium arvense Field chickweed Caryophyllaceae Cerastium viscosum* Sticky chickweed Caryophyllaceae Cerastium vulgatum* Mouse-ear chickweed Caryophyllaceae Ceratophyllum demersum Hornwort Ceratophyllaceae Chaenactis douglasii Dusty maidens Asteraceae Cheilanthes gracillima Lace fern Polypodiaceae Chenopodium album* Pigweed Chenopodiaceae Chenopodium ambrosioides* Mexican tea wormseed Chenopodiaceae Chenopodium botrys* Jerusalem oak Chenopodiaceae Chenopodium chenopodioides Red goosefoot Chenopodiaceae Chenopodium fremontii Fremont's goosefoot Chenopodiaceae Chimaphila menziesii Little pipsissewa Ericaceae Chimaphila umbellata Pipsissewa Ericaceae Chorispora tenella* Blue mustard Brassicaceae Chrysanthemum leucanthemum* Ox-eye daisy Asteraceae Chrysanthemum parthenium* Fever-few Asteraceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 4 of 20 Chrysopsis villosa Hairy golden-aster Asteraceae Chrysothamnus nauseosus Gray rabbit-brush Asteraceae Chrysothamnus viscidiflorus Green rabbit-brush Asteraceae Cichorium intybus* Chicory Asteraceae Cicuta douglasii Water-hemlock Apiaceae Cimicifuga elata Tall bugbane Ranunculaceae Cimicifuga laciniata Mt. Hood bugbane Ranunculaceae Circaea alpina Enchanter's nightshade Onagraceae Circium arvense* Canada thistle Asteraceae Circium callilepsis mountain thistle Asteraceae Circium remotifolium Weak thistle Asteraceae Circium undulatum Wavy-leaved thistle Asteraceae Circium vulgare* Bull thistle Asteraceae Clarkia amoena Farwell-to-spring Onagraceae Clarkia gracilis Slender godetia Onagraceae Clarkia pulchella Ragged Robin Onagraceae Clarkia quadrivulnera Small-flowered godetia Onagraceae Clarkia rhomboidea Common clarkia Onagraceae Claytonia lanceolata Western spring beauty Portulacaceae Clematis lingusticifolia Virgin's bower Ranunculaceae Cleome lutea Yellow bee-plant Capparidaceae Clintonia uniflora Queen's cup Liliaceae Cnicus benedictus Blessed-thistle Asteraceae Collinsia grandiflora Large-flowered blue-eyed Mary Scrophulariaceae Collinsia parviflora Small-flowered blue-eyed Mary Scrophulariaceae Collinsia rattanii Rattan's collensia Scrophulariaceae Collinsia sparsiflora Few-flowered collinsia Scrophulariaceae Collomia grandiflora Large-flowered collomia Polemoniaceae Collomia heterophylla Varied-leaf collomia Polemoniaceae Commandra umbellata Bastard toad-flax Santalaceae Conium maculatum* Poison hemlock Apiaceae Convolvulus arvensis* Field morning-glory Convolvulaceae Convolvulus sepium* Lady's nightcap Convolvulaceae Conyza canadensis* Horseweed Asteraceae Coptis laciniata Cut-leaf goldthread Ranunculaceae Corallorhiza maculata Spotted coral-root Orchidaceae Corallorhiza mertensiana Western coral-root Orchidaceae Corallorhiza striata Striped coral-root Orchidaceae Corallorhiza trifida Yellow coral-root Orchidaceae Coreopsis atkinsoniana Columbia tickseed Asteraceae Corispermum hyssopifolium Bugseed Chenopodiaceae Cornus canadensis Bunchberry Cornaceae Cornus nuttallii Pacific dogwood Cornaceae Cornus stolonifera Red-osier dogwood Cornaceae Corydalis aquae-gelidae Clackimus corydalis Fumariaceae Corydalis scouleri Western corydalis Fumariaceae Crataegus douglasii Black hawthorn Rosaceae Crepis atrabarba Slender hawksbeard Asteraceae Crepis barbigera Bearded hawksbeard Asteraceae Crepis capillaris* Smooth hawksbeard Asteraceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 5 of 20 Crepis intermedia Gray hawksbeard Asteraceae Crepis occidentalis Western hawksbeard Asteraceae Crocidium multicaule Goldstar Asteraceae Cryptantha flaccida Weak-stem cryptantha Boraginaceae Cryptantha intermedia Common cryptantha Boraginaceae Cryptantha rostellata Beaked cryptantha Boraginaceae Cryptantha torreyana Torrey's cryptantha Boraginaceae Cryptogramma crispa Parsley fern Polypodiaceae Cuscuta pentagona Field dodder Cuscutaceae Cymopteris terebinthinus Turpentine spring-parsley Apiaceae Cynoglossum grande Pacific hound's-tounge Boraginaceae Cynoglossum officinale* Common hound's-tongue Boraginaceae Cypripedium montanum Mountain lady's-slipper Orchidaceae Cystopteris fragilis Fragile fern Polypodiaceae Datura stramonium* Jimson-weed Solanaceae Daucus carota* Queen Anne's lace Apiaceae Daucus pusillus American carrot Apiaceae Delphinium burkei Meadow larkspur Ranunculaceae Delphinium glareosum Rockslide larkspur Ranunculaceae Delphinium menziesii Mountain larkspur Ranunculaceae Delphinium nuttallianum Upland larkspur Ranunculaceae Delphinium nuttallii Nuttall's larkspur Ranunculaceae Delphinium trolliifolium Columbia larkspur Ranunculaceae Descurainia richardsonii Mountain tansymustard Brassicaceae Dianthus armeria* Grass pink Caryophyllaceae Dicentra cucullaria Dutchman's breeches Fumariaceae Dicentra formosa Bleeding heart Fumariaceae Digatalis purpurea* Foxglove Scrophulariaceae Dipsacus sylvestris* Teasel Dipsacaceae Disporum hookeri Hooker fairy-bell Liliaceae Disporum smithii Smith fairy-bell Liliaceae Dodecatheon conjugens Desert shooting star Primulaceae Dodecatheon cusickii Cusick's shooting star Primulaceae Dodecatheon dentatum White shooting star Primulaceae Dodecatheon jeffreyi Jeffrey's shooting star Primulaceae Dodecatheon poeticum Narcissus shooting star Primulaceae Dodecatheon pulchellum Few-flowered shooting star Primulaceae Douglasia laevigata Smooth douglasia Primulaceae Downingia elegans Showy downingia Campanulaceae Downingia yina Cascade downingia Campanulaceae Draba douglasii Douglas' draba Brassicaceae Draba nemerosa Wood's draba Brassicaceae Draba reptans Carolina draba Brassicaceae Drosera anglica Great sundew Droseraceae Drosera rotundifolia Round-leaf sundew Droseraceae Dryopteris arguta Coastal wood-fern Polypodiaceae Dryopteris austriaca Spreading wood-fern Polypodiaceae Dryopteris filix-mas Male fern Polypodiaceae Eburophyton austiniae Phantom orchid Orchidaceae Elatine triandra Three-stamened waterwort Elatinaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 6 of 20 Epilobium alpinum Alpine willow-herb Onagraceae Epilobium angustifolium Fireweed Onagraceae Epilobium glandulosum Common willow-herb Onagraceae Epilobium hirsutum* Fiddle-grass Onagraceae Epilobium luteum Yellow willow-herb Onagraceae Epilobium minutum Small-flowered willow-herb Onagraceae Epilobium paniculatum Tall annual willow-herb Onagraceae Epilobium watsonii Watson's willow-herb Onagraceae Epipactis gigantea Giant helleborine Orchidaceae Eremocarpus setigerus Doveweed Euphorbiaceae Erigeron annuus Annual fleabane Asteraceae Erigeron divergens Spreading daisy Asteraceae Erigeron filifolius Thread-leaf fleabane Asteraceae Erigeron howellii Howell's fleabane Asteraceae Erigeron linearis Desert yellow daisy Asteraceae Erigeron oraganus Gorge daisy Asteraceae Erigeron peregrinus Subalpine daisy Asteraceae Erigeron philadelphicus Phidelphia daisy Asteraceae Erigeron poliospermus Cushion fleabane Asteraceae Erigeron strigosus Daisy flebane Asteraceae Erigeron subtrinervis Three-viened fleabane Asteraceae Eriogonum compositum Northern buckwheat Polygonaceae Eriogonum douglasii Douglas' buckwheat Polygonaceae Eriogonum elatum Tall buckwheat Polygonaceae Eriogonum strictum Strict buckwheat Polygonaceae Eriogonum umbellatum Sulfur buckwheat Polygonaceae Eriogonum vimineum Broom buckwheat Polygonaceae Eriophyllum lanatum Oregon sunshine Asteraceae Erodium cicutarium* Filaree Geraniaceae Erucastrum gallicum* Dog mustard Brassicaceae Eryngium petiolatum Coyote-thistle Apiaceae Erysimum asperum Rough wallflower Brassicaceae Erysimum occidentale Pale wallflower Brassicaceae Erythronium grandiflorum Glacier lily Liliaceae Erythronium montanum Avalanche lily Liliaceae Erythronium oreganum Giant fawn-lily Liliaceae Eschscholtzia californica California poppy Papaveraceae Euphorbia glyptosperma Corregate-seeded spurge Euphorbiaceae Euphorbia serpyllifolia Thyme-leaf spurge Euphorbiaceae Euphorbia supina Milk spurge Euphorbiaceae Euphrasia officinalis* Hairy eye-bright Scrophulariaceae Fragaria vesca Wild strawberry Rosaceae Fragaria virginiana Woods strawberry Rosaceae Frasera albicaulis Columbia frasera Gentianaceae Fritillaria lanceolata Chocolate lily Liliaceae Fritillaria pudica Yellow bell Liliaceae Gaillardia aristata Blanket-flower Asteraceae Galium aparine Cleavers Rubiaceae Galium boreale Northern bedstraw Rubiaceae Galium cymosum Pacific bedstraw Rubiaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 7 of 20 Galium oreganum Oregon bedstraw Rubiaceae Galium parisiense* Wall bedstraw Rubiaceae Galium trifidum Small bedstraw Rubiaceae Galium triflorum Fragrant bedstraw Rubiaceae Garrya fremontii Fremont's silk-tassel Garryaceae Gaultheria humifusa Alpine wintergreen Ericaceae Gaultheria ovatifolia Slender wintergreen Ericaceae Gaultheria shallon Salal Ericaceae Gaura parviflora Guara Onagraceae Gayophytum humile Dwarf groundsmoke Onagraceae Gentiana calycosa Mountain bog gentian Gentianaceae Gentiana sceptrum King's gentian Gentianaceae Geranium carolinianum Wild geranium Geraniaceae Geranium columbianum* Long-stalked geranium Geraniaceae Geranium dissectum* Cut-leaf geranium Geraniaceae Geranium molle* Dovefoot geranium Geraniaceae Geranium robertianum* Stinky Bob Geraniaceae Geum macrophyllum Large-leaved avens Rosaceae Geum triflorum Prairie smoke Rosaceae Gilia capitata Globe gilia Polemoniaceae Githopsis specularioides Common blue-cup Campanulaceae Glecoma hederacea* Creeping Charlie Lamiaceae Glycyrrhiza lepidota Licorice -root Fabaceae Gnaphalium chilense Cottonbatting cudweed Asteraceae Gnaphalium microcephalum Slender cudweed Asteraceae Gnaphalium palustre Lowland cudweed Asteraceae Gnaphalium purpureum Purple cudweed Asteraceae Gnaphalium uliginosum* Marsh cudweed Asteraceae Goodyera oblongifolia Rattlesnake-plantain Orchidaceae Gratiola ebracteata Hedge hyssop Scrophulariaceae Gratiola neglecta American hedge-hyssop Scrophulariaceae Grindellia columbiana Columnia River gumweed Asteraceae Grindellia squarrosa Resinweed Asteraceae Gymnocarpium dryopteris Oak fern Polypodiaceae Habenaria dilatata White bog-orchid Orchidaceae Habenaria elegans Elegant rein-orchid Orchidaceae Habenaria hyperborea Northern green bog-orchid Orchidaceae Habenaria saccata Slender bog-orchid Orchidaceae Habenaria sparsiflora Canyon bog-orchid Orchidaceae Habenaria unalascensis Alaska rein-orchid Orchidaceae Hackelia diffusa Sagebrush stickseed Boraginaceae Haplopappus carthemoides Large-flowered goldenweed Asteraceae Haplopappus hallii Hall's goldenweed Asteraceae Haplopappus resinosus Columbia goldenweed Asteraceae Hedysarum occidentale Western hedysarum Fabaceae Helenium autumnale Sneezeweed Asteraceae Helianthella uniflora Little-sunflower Asteraceae Helianthus annuus* Common sunflower Asteraceae Heracleum lanatum Cow parsnip Apiaceae Hesperis matronalis* Dame's violet Brassicaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 8 of 20 Hesperochiron pumilis Dwarf hesperochiron Hydrophyllaceae Heterocodon rariflorum Heterocodon Campanulaceae Heuchera chlorantha Meadow alumroot Saxifragaceae Heuchera glabra Smooth alumroot Saxifragaceae Heuchera grossulariifolia Alumroot Saxifragaceae Heuchera micrantha Small-flowered alumroot Saxifragaceae Hieracium albiflorum White-flowered hawkweed Asteraceae Hieracium gracile Slender hawkweed Asteraceae Hieracium longiberbe Long-beaked hawkweed Asteraceae Hieracium scouleri Scouler's hawkweed Asteraceae Hieracium umbellatum Nrrow-leaf hawkweed Asteraceae Hieracium vulgatum* Common hawkweed Asteraceae Holodiscus discolor Ocean spray Rosaceae Holosteum umbellatum* Jagged chickweed Caryophyllaceae Hydrophyllum capitatum Woolly breeches Hydrophyllaceae Hydrophyllum tenuipes Pacific waterleaf Hydrophyllaceae Hypericum anagalloides Bog St. John's wort Hypericaceae Hypericum perforatum* Klamath weed Hypericaceae Hypochaeris glabra* Smooth cat's-ear Asteraceae Hypochaeris radicata* Hairy cat's-ear Asteraceae Hypopites monotropa Many-flowered indian pipe Ericaceae Idahoa scapigera Scalepod Brassicaceae Iliamna rivularis Streambank globemallow Malvaceae Impatiens capensis Orange balsam Balsaminaceae Iris misouriensis Western blue flag Iridaceae Iris pseudacorus* Yellow flag Iridaceae Iris tenax Oregon iris Iridaceae Isopyrum hallii Hall's isopyrum Ranunculaceae Kalmia occidentalis Western swamp laurel Ericaceae Kochia scoparia* Summer cypress Chenopodiaceae Lactuca biennis Tall blue lettuce Asteraceae Lactuca serriola* Prickly lettuce Asteraceae Lagophylla ramosissima Common hareleaf Asteraceae Lamium amplexicaule* Henbit Lamiaceae Lamium purpureum* Red dead-nettle Lamiaceae Lapsana communis* Nipplewort Asteraceae Lasthenia glaberrima Smooth lasthenia Asteraceae Lathyrus latifolius* Everlasting peavine Fabaceae Lathyrus nevadensis Nuttall's peavine Fabaceae Lathyrus pauciflorus Few-flowered peavine Fabaceae Lathyrus polyphyllus Leafy peavine Fabaceae Lathyrus sphaericus* Grass peavine Fabaceae Lathyrus torreyi Torrey's peavine Fabaceae Leontodon nudicaulis* Hairy hawkbit Asteraceae Lepidium campestre* Field peppergrass Brassicaceae Lepidium latifolium* Broadleaf pepperweed Brassicaceae Lepidium nitidum Peppergrass Brassicaceae Lepidium perfoliatum* Clasping peppergrass Brassicaceae Lesquerella douglasii Columbia bladderpod Brassicaceae Lewisia columbiana Columbia lewisia Portulacaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 9 of 20 Lewisia rediviva Bitterroot Portulacaceae Ligusticum apiifolium Western lovage Apiaceae Ligusticum grayi Gray's lovage Apiaceae Lilaeopsis occidentalis Lilaeopsis Apiaceae Lilium columbianum Tiger lily Liliaceae Limosella aquatica Mudwort Scrophulariaceae Linanthus bakeri Baker's linanthus Polemoniaceae Linanthus bicolor Bicolored linanthus Polemoniaceae Linanthus harknessii Harkness' linanthus Polemoniaceae Linaria dalmatica* Dalmatian toad-flax Scrophulariaceae Linaria vulgaris* Butter and eggs Scrophulariaceae Lindernia anagallidea False pimpernel Scrophulariaceae Lindernia dubia False pimpernel Scrophulariaceae Linnaea borealis Twinflower Caprifoliaceae Listera caurina Northwestern twayblade Orchidaceae Listera convallarioides Broad-lipped twayblade Orchidaceae Listera cordata Heart-leaved twayblade Orchidaceae Lithophragma bulbifera Slender prairie-star Saxifragaceae Lithophragma glabra Smooth woodlandstar Saxifragaceae Lithophragma parviflora Small-flowered prairie-star Saxifragaceae Lithospermum arvense* Corn gromwell Boraginaceae Lithospermum ruderale Columbia puccoon Boraginaceae Lomatium canbyi Canby's desert-parsley Apiaceae Lomatium columbianum Columbia desert-parsley Apiaceae Lomatium dissectum Fern-leaf biscuit-root Apiaceae Lomatium laevigatum Smooth desert-parsley Apiaceae Lomatium leptocarpum Bi-color biscuit-root Apiaceae Lomatium macrocarpum Large-fruited lomatium Apiaceae Lomatium martindalei Few-flowered lomatium Apiaceae Lomatium nudicaule Pestle parsnip Apiaceae Lomatium piperi Piper's bisciut-root Apiaceae Lomatium suksdorfii Suksdorf's lomatium Apiaceae Lomatium triternatum Nine-leaf lomatium Apiaceae Lonicera ciliosa Orange honeysuckle Caprifoliaceae Lonicera conjugialis Red twinberry Caprifoliaceae Lonicera involucrata Twinberry Caprifoliaceae Lotus corniculatus* Birdsfoot trefoil Fabaceae Lotus crassifolius Big deervetch Fabaceae Lotus micranthus Miniature lotus Fabaceae Lotus nevadensis Nevada deervetch Fabaceae Lotus pinnatus Meadow deervetch Fabaceae Lotus purshiana Spanish clover Fabaceae Ludwigia palustris False loosestrife Onagraceae Luetkea pectinata Partridge foot Rosaceae Luina nardosmia Silvercrown luina Asteraceae Lunaria annua* Money plant Brassicaceae Lupinus bicolor Two-color lupine Fabaceae Lupinus latifolius Broad-leaf lupine Fabaceae Lupinus laxiflorus Spurred lupine Fabaceae Lupinus lepidus Prairie lupine Fabaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 10 of 20 Lupinus leucophyllus Velvet lupine Fabaceae Lupinus micranthus Small-flowered lupine Fabaceae Lupinus polyphyllus Big-leaf lupine Fabaceae Lupinus rivularis Streambank lupine Fabaceae Lupinus sericeus Silky lupine Fabaceae Lychnus alba* White campion Caryophyllaceae Lychnus coronaria* Rose campion Caryophyllaceae Lychnus dioica Red campion Caryophyllaceae Lycopus americanus Water hoarhound Lamiaceae Lycopus asper Rough bugleweed Lamiaceae Lycopus uniflorus Northern bugleweed Lamiaceae Lysichiton americanum Skunk cabbage Araceae Lysimachia ciliata Fringed loosestrife Primulaceae Lysimachia nummularia* Moneywort Primulaceae Lysimachia terrestris* Bog loosestrife Primulaceae Lythrum portula* Water purslane Lythraceae Lythrum salicaria* Purple loosestrife Lythraceae Machaeranthera canescens Hoary aster Asteraceae Machaerocarpus californicus Fringed waterplantain Alismataceae Madia citriodora Lemon-scented tarweed Asteraceae Madia exigua Little tarweed Asteraceae Madia glomerata Mountain tarweed Asteraceae Madia gracilis Common tarweed Asteraceae Madia minima Small-head tarweed Asteraceae Madia sativa Coast tarweed Asteraceae Maianthemum dilatatum False lily-of-the-valley Liliaceae Malva neglecta Dwarf mallow Malvaceae Marah oregana Manroot Cucurbitaceae Marrubium vulgare* Horehound Lamiaceae Matricaria maritima* Scentless may-weed Asteraceae Matricaria matricarioides* Pineapple weed Asteraceae Mazus japonicus* Japanese mazus Scrophulariaceae Meconella oregana White meconella Papaveraceae Medicago sativa* Alfalfa Fabaceae Melilotus alba* White sweet-clover Fabaceae Melilotus officinalis* Yellow sweet-clover Fabaceae Mellisa officinalis* Lemon balm Lamiaceae Mentha arvensis Field mint Lamiaceae Mentha piperita* Peppermint Lamiaceae Mentha pulegium* Pennyroyal Lamiaceae Mentha spicata* Spearmint Lamiaceae Mentzelia laevicaulis Blazingstar Loasaceae Menyanthes trifoliata Buckbean Menyanthaceae Menziesia ferruginea Fool's huckleberry Ericaceae Mertensia paniculata Tall bluebells Boraginaceae Microseris borealis Apargidium Asteraceae Microseris laciniata Cut-leaved microseris Asteraceae Microseris lindleyi Lindley's microseris Asteraceae Microseris nutans Nodding microseris Asteraceae Microseris troximoides Wavyleaf microseris Asteraceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 11 of 20 Microsteris gracilis Pink microsteris Polemoniaceae Mimulus alsinoides Chickweed monkey-flower Scrophulariaceae Mimulus breviflorus Short-flowered monkey-flower Scrophulariaceae Mimulus floribundus Purple-stem monkey-flower Scrophulariaceae Mimulus gutattus Common monkey-flower Scrophulariaceae Mimulus jungermannioides Liverwort monkey-flower Scrophulariaceae Mimulus moschatus Musk-flower Scrophulariaceae Mimulus pulsiferae Pulsifer's monkey-flower Scrophulariaceae Mitella breweri Brewer's miterwort Saxifragaceae Mitella caulescens Leafy miterwort Saxifragaceae Mitella diversifolia Varied-leaf mitewort Saxifragaceae Mitella ovalis Coastal mitrewort Saxifragaceae Mitella pentandra Alpine miterwort Saxifragaceae Mollugo verticillata* Carpetweed Aizoaceae Monardella odoratissima Mountain monardella Lamiaceae Moneses uniflora Woodnymph Ericaceae Monotropa uniflora Single-flowered indian pipe Ericaceae Montia chamissoi Water montia Portulacaceae Montia cordifolia Broad-leafed montia Portulacaceae Montia dichotoma Dwarf montia Portulacaceae Montia fontana Water chickweed Portulacaceae Montia linearis Narrow-leaf montia Portulacaceae Montia parvifolia Streambank spring beauty Portulacaceae Montia perfoliata Miner's lettuce Portulacaceae Montia siberica Candyflower Portulacaceae Montia spathulata Pale montia Portulacaceae Myosotis arvensis* Field forget-me-not Boraginaceae Myosotis discolor* Yellow & blue forget-me-not Boraginaceae Myosotis laxa Small-flowered forget-me-not Boraginaceae Myosotis micrantha* Blue forget-me-not Boraginaceae Myosotis sylvatica Wood forget-me-not Boraginaceae Myosurus aristatus Sedge mousetail Ranunculaceae Myosurus minimus Common mousetail Ranunculaceae Myriophyllum spicatum* Spiked water-milfoil Haloragaceae Navarretia divaricata Mountain navarretia Polemoniaceae Navarretia intertexta Needle-leaf navarretia Polemoniaceae Navarretia squarrosa Skunkweed Polemoniaceae Navarretia tagetina Northern navarretia Polemoniaceae Nemophila breviflora Great Basin nemophila Hydrophyllaceae Nemophila parviflora Small-flowered nemophila Hydrophyllaceae Nemophila pedunculata Meadow nemophila Hydrophyllaceae Nepeta cataria* Catnip Lamiaceae Nothochelone nemerosa Woodland beard-tongue Scrophulariaceae Nuphar polysepalum Pond lily Nymphaeaceae Nymphaea odorata* American water-lily Nymphaeaceae Oemlaria cerasiformus Indian plum Rosaceae Oenanthe sarmentosa Water parsley Apiaceae Oenothera contorta Bentpod evening-primrose Onagraceae Oenothera pallida White-stemmed e-p Onagraceae Oenothera strigosa Common evening-primrose Onagraceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 12 of 20 Oplopanax horridum Devil's club Araliaceae Opuntia polyacantha Prickley pear Cactaceae Orobanche fasciculata Clustered broomrape Orobanchaceae Orobanche ludoviciana Flat-topped broomrape Orobanchaceae Orobanche minor* Colver broomrape Orobanchaceae Orobanche pinorum Pine broomrape Orobanchaceae Orobanche uniflora Naked broom-rape Orobanchaceae Orthocarpus attenuatus Narrow-leaved owl-clover Scrophulariaceae Orthocarpus hispidus Hairy owl-clover Scrophulariaceae Orthocarpus pusillus Dwarf owl-clover Scrophulariaceae Osmorhiza chilensis Mountain sweet-cicely Apiaceae Osmorhiza occidentalis Western sweet-cicely Apiaceae Oxalis oregana Oregon wood-sorrel Oxalidaceae Oxalis trilliifolia Great oxalis Oxalidaceae Pachistima myrsinites Mountain box Celastraceae Papaver argemone* Long prickly-headed poppy Papaveraceae Parietaria pennsylvanica Pellitory Urticaceae Parnassia fimbriata Fringed grass-of-parnassus Saxifragaceae Pastinaca sativa* Parsnip Apiaceae Pectocarya pusilla Little pectocarya Boraginaceae Pedicularis bracteosa Bracted lousewort Scrophulariaceae Pedicularis contorta Coiled lousewort Scrophulariaceae Pedicularis groenlandica Elephant's head Scrophulariaceae Pedicularis racemosa Sickletop lousewort Scrophulariaceae Penstemon acuminatus Sand-dune penstemon Scrophulariaceae Penstemon barrettiae Barrett's [enstemon Scrophulariaceae Penstemon cardwellii Cardwell's penstemon Scrophulariaceae Penstemon deustus Hot-rock penstemon Scrophulariaceae Penstemon fruticosus Shrubby penstemon Scrophulariaceae Penstemon gairdneri Gairdner's penstemon Scrophulariaceae Penstemon glandulosus Glandular penstemon Scrophulariaceae Penstemon ovatus Broad-leaf penstemon Scrophulariaceae Penstemon richardsonii Richardson's penstemon Scrophulariaceae Penstemon rupicola Cliff penstemon Scrophulariaceae Penstemon serrulatus Cascade penstemon Scrophulariaceae Penstemon subserratus Fine-tooth penstemon Scrophulariaceae Perideridia gairdneri Yampah Apiaceae Perideridia oregana Oregon yampah Apiaceae Petasites frigidus Coltsfoot Asteraceae Phacelia hastata White-leaf phacelia Hydrophyllaceae Phacelia heterophylla Varileaf phacelia Hydrophyllaceae Phacelia linearis Thread-leaf phacelia Hydrophyllaceae Phacelia nemoralis Woodland phacelia Hydrophyllaceae Philadelphus lewisii Mock-orange Hydrangeaceae Phlox diffusa Spreading phlox Polemoniaceae Phlox hoodii Hood's phlox Polemoniaceae Phlox longifolia Long-leaf phlox Polemoniaceae Phlox speciosa Showy phlox Polemoniaceae Phoenicaulis chieranthoides Daggerpod Brassicaceae Phyllodoce empetriformis Red mountain heather Ericaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 13 of 20 Physocarpus capitatus Pacific ninebark Rosaceae Physostegia parviflora Purple dragon-head Lamiaceae Picris echioides* Ox-tongue Asteraceae Pityrogramma triangularis Gold-back fern Polypodiaceae Plagiobothrys figuratus Popcorn flower Boraginaceae Plagiobothrys leptocladus Popcorn flower Boraginaceae Plagiobothrys nothofulvus Popcorn flower Boraginaceae Plagiobothrys scouleri Scouler's popcorn-flower Boraginaceae Plagiobothrys tenellus Slender popcorn-flower Boraginaceae Plantago lanceolata* English plantain Plantaginaceae Plantago major* Common plantain Plantaginaceae Plantago patagonica Candleweed Plantaginaceae Plectritus ciliosa Long-spurred plectritus Valerianaceae Plectritus congesta Sea blush Valerianaceae Plectritus macrocera White plectritus Valerianaceae Pleuricospora fimbriolata Fringed pinesap Ericaceae Polemonium carneum Great polemonium Polemoniaceae Polemonium micranthum Littlebells polemonium Polemoniaceae Polygonum amphibium Water smartweed Polygonaceae Polygonum aviculare* Doorweed Polygonaceae Polygonum bistortoides Mountain bistort Polygonaceae Polygonum californicum alifornia knotweed Polygonaceae Polygonum cascadense Cascadian knotweed Polygonaceae Polygonum coccineum Swamp persicaria Polygonaceae Polygonum confertiflorum Close-flowered knotweed Polygonaceae Polygonum douglasii Douglas' knotweed Polygonaceae Polygonum hydropiper Marshpepper smartweed Polygonaceae Polygonum hydropiperoides Waterpepper Polygonaceae Polygonum kelloggii Kellogg's knotweed Polygonaceae Polygonum lapathifolium* Willow weed Polygonaceae Polygonum majus Wiry knotweed Polygonaceae Polygonum minimum Leafy dwarf knotweed Polygonaceae Polygonum nuttallii Nuttall's knotweed Polygonaceae Polygonum persicaria* Heartweed Polygonaceae Polygonum sawatchense Sawatch knotweed Polygonaceae Polygonum spergulariaeforme Spurry knotweed Polygonaceae Polypodium glycyrrhiza Licorice fern Polypodiaceae Polypodium hesperium Polypody Polypodiaceae Polystichum andersonii Anderson's sword-fern Polypodiaceae Polystichum imbricans Christmas-fern Polypodiaceae Polystichum munitum Sword fern Polypodiaceae Portulaca oleracea* Purslane Portulacaceae Potamogeton crispus Curled pondweed Potamogetonaceae Potamogeton foliosus Closed-leaved pondweed Potamogetonaceae Potamogeton natans Floating-leaf pondweed Potamogetonaceae Potamogeton pectinatus Fennel-leaf pondweed Potamogetonaceae Potentilla anserina Common silverweed Rosaceae Potentilla biennis Biennial cinquefoil Rosaceae Potentilla drummondii Drummond's cinquefoil Rosaceae Potentilla flabellifolia Fan-leaf cinquefoil Rosaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 14 of 20 Potentilla fruticosa Shrubby cinquefoil Rosaceae Potentilla glandulosa Sticky cinquefoil Rosaceae Potentilla gracilis Graceful cinquefoil Rosaceae Potentilla norvegica* Norwegian cinquefoil Rosaceae Potentilla recta* Erect cinquefoil Rosaceae Potentilla rivalis Brook cinquefoil Rosaceae Prenanthes alata Wetern rattlesnake-root Asteraceae Prunella vulgaris Self-heal Lamiaceae Prunus emarginata Bitter cherry Rosaceae Prunus virginiana Chokecherry Rosaceae Psiloparphus elatior Tall woolly-heads Asteraceae Psoralea lanceolata Dune scurf-pea Fabaceae Pteridium aquilinum Bracken Polypodiaceae Pterospora andromedea Pinedrops Ericaceae Purshia tridentata Bitterbrush Rosaceae Pyrola aphylla Leafless pyrola Ericaceae Pyrola asarifolia Pink wintergreen Ericaceae Pyrola picta White-veined wintergreen Ericaceae Pyrola secunda One-sided wintergreen Ericaceae Pyrus fusca Crabapple Rosaceae Ranunculus alismaefolius Water-plantain buttercup Ranunculaceae Ranunculus aquatilis Water buttercup Ranunculaceae Ranunculus cymballaria Shore buttercup Ranunculaceae Ranunculus flabellaris Yellow water-buttercup Ranunculaceae Ranunculus flammula Lesser spearwort Ranunculaceae Ranunculus glaberrimus Sagebrush buttercup Ranunculaceae Ranunculus hebecarpus Downy buttercup Ranunculaceae Ranunculus lobbii Lobb's butercup Ranunculaceae Ranunculus occidentalis Western buttercup Ranunculaceae Ranunculus orthorhynchus Straight-beak buttercup Ranunculaceae Ranunculus pennsylvanicus Bristly buttercup Ranunculaceae Ranunculus reconditus Obscure buttercup Ranunculaceae Ranunculus repens* Creeping buttercup Ranunculaceae Ranunculus sardous Hairy buttercup Ranunculaceae Ranunculus scleratus Blister buttercup Ranunculaceae Ranunculus testiculatus* Hornseed buttercup Ranunculaceae Ranunculus uncinatus Little buttercup Ranunculaceae Raphanus raphanistrum* Jointed sharlock Brassicaceae Raphanus sativus* Wild radish Brassicaceae Rhamnus purshiana Cascara Rhamnaceae Rhinanthus cristi-galli Rattle-box Scrophulariaceae Rhododendron macrophyllum Western rhododendron Ericaceae Rhus diversiloba Poison oak Anacardiaceae Rhus glabra Sumac Anacardiaceae Rhus radicans Poison ivy Anacardiaceae Ribes aureum Golden currant Grossulariaceae Ribes bracteosum Stink currant Grossulariaceae Ribes cereum Wax currant Grossulariaceae Ribes divaricatum Coast black gooseberry Grossulariaceae Ribes lacustre Prickly currant Grossulariaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 15 of 20 Ribes lobbii Gummy gooseberry Grossulariaceae Ribes niveum Snow gooseberry Grossulariaceae Ribes sanguinium Red-flowered currant Grossulariaceae Ribes viscosissimum Sticky currant Grossulariaceae Rigiopappus leptocladus Bristlehead Asteraceae Robinia pseudoacacia* Black locust Fabaceae Romanzoffia sitchensis Sitka mistmaiden Hydrophyllaceae Rorippa columbiae Columbia yellowcress Brassicaceae Rorippa curvisiliqua Western yellowcress Brassicaceae Rorippa islandica Marsh yellowcress Brassicaceae Rorippa nasturtium-aquaticum* Water cress Brassicaceae Rorippa obtusa Blunt-leaf yellowcress Brassicaceae Rorripa sylvestris Creeping yellowcress Brassicaceae Rosa canina* Dog rose rosaceae Rosa eglanteria* Sweetbrier Rosaceae Rosa gymnocarpa Baldhip rose Rosaceae Rosa nutkana Nootka rose Rosaceae Rosa pisocarpa Clustered wild rose Rosaceae Rosa woodsii Wood's 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 maritimus Golden dock Polygonaceae Rumex obtusifolius* Broad-leaved dock Polygonaceae Rumex occidentalis Western dock Polygonaceae Rumex salicifolius Willow dock Polygonaceae Rumex venosus Winged dock Polygonaceae Sagittaria cuneata Wapato Alismataceae Sagittaria latifolia Broadleaf arrowhead Alismataceae Salsola kali* Russian thistle Chenopodiaceae Sambucus cerulea Blue elderberry Caprifoliaceae Sambucus racemosa Red elderberry Caprifoliaceae Sanguisorba occidentalis Annual burnet Rosaceae Sanguisorba officinalis Garden burnet Rosaceae Sanicula crassicaulis Pacific sanicle Apiaceae Sanicula graveolens Sierra sanicle Apiaceae Saponaria officinalis* Bouncing Bett Caryophyllaceae Satureja douglasii Yerba buena Lamiaceae Saxifraga arguta Brook saxifrage Saxifragaceae Saxifraga bronchialis Spotted saxifrage Saxifragaceae Saxifraga caespitosa Tufted saxifrage Saxifragaceae Saxifraga ferruginea Rusty saxifrage Saxifragaceae Saxifraga integrifolia Grassland saxifrage Saxifragaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 16 of 20 Saxifraga mertensiana Merten's saxifrage Saxifragaceae Saxifraga occidentalis Western saxifrage Saxifragaceae Saxifraga oregana Bog saxifrage Saxifragaceae Saxifraga punctata Dotted saxifrage Saxifragaceae Schoenocrambe linifolia Plains mustard Brassicaceae Scleranthus annuus* Annual knawel Caryophyllaceae Scrophularia lanceolata Lance-leaf figwort Scrophulariaceae Scutellaria angustifolia Narrow-leaved skullcap Lamiaceae Scuttelaria lateriflora Mad-dog skullcap Lamiaceae Sedum leibergii Leiberg's stonecrop Crassulaceae Sedum oreganum Oregon stonecrop Crassulaceae Sedum spathulifolium Broadleaved stonecrop Crassulaceae Sedum stenopetalum Worm-leaf stonecrop Crassulaceae Senecio bolanderi Bolander's groundsel Asteraceae Senecio cymbalarioides Few-leaved groundsel Asteraceae Senecio foetidus Sweet-marsh butterweed Asteraceae Senecio hydrophilus Alkali-marsh groundsel Asteraceae Senecio integerrimus Western groundsel Asteraceae Senecio jacobaea* Tansy ragwort Asteraceae Senecio pseudaureus Streambank butterweed Asteraceae Senecio triangularis Arrowleaf groundsel Asteraceae Senecio vulgaris* Common groundsel Asteraceae Sidalcea oregana Oregon checkermallow Malvaceae Silene antirrhena Sleepy catchfly Caryophyllaceae Silene cucubalus* Bladder campion Caryophyllaceae Silene douglasii Douglas' silene Caryophyllaceae Silene gallica* Windmill pink Caryophyllaceae Silene menziesii Menzies' silene Caryophyllaceae Silene noctiflora* Night-flowering catchfly Caryophyllaceae Silene oregana Oregon silene Caryophyllaceae Sisymbrium altissimum* Jim Hill mustard Brassicaceae Sisymbrium officinale* Hedge mustard Brassicaceae Sisyrinchium angustifolium Blue-eyed grass Iridaceae Sisyrinchium douglasii Grass-widow Iridaceae Sium suave Water-parsnip Apiaceae Smilacina racemosa False Solomon's seal Liliaceae Smilacina stellata Star-flowered Solomon's seal Liliaceae Solanum dulcamara* Bittersweet nightshade Solanaceae Solanum nigrum Black nightshade Solanaceae Solanum saccaroides* Hairy nightshade Solanaceae Solanum triflorum Cut-leaf nightshade Solanaceae Solidago canadensis Meadow goldenrod Asteraceae Solidago occidentalis Western goldenrod Asteraceae Sonchus asper* Prickly sowthistle Asteraceae Sonchus oleraceus* Common sowthistle Asteraceae Sorbus scopulina Cascade mountain-ash Rosaceae Sorbus sitchensis Sitka mountain-ash Rosaceae Sparganium emersum Simplestem bur-reed Sparganiaceae Spergula arvensis* Cornspurry Caryophyllaceae Spergularia diandra* Alkali sandspurry Caryophyllaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 17 of 20 Spergularia rubra* Red sandspurry Caryophyllaceae Spiraea betulifolia Birch-leafed spirea Rosaceae Spiraea densiflora Rosy spirea Rosaceae Spiraea douglasii Hardhack Rosaceae Spiraea pyramidata Pyramid spiraea Rosaceae Spiranthes romanzoffiana Hooded ladies-tresses Orchidaceae Stachys cooleyae Cooley's hedge-nettle Lamiaceae Stachys mexicana Mexican betony Lamiaceae Stachys palustris Swamp hedge-nettle Lamiaceae Stellaria calycantha Northern starwort Caryophyllaceae Stellaria crispa Crisped starwort Caryophyllaceae Stellaria longifolia Long-leaved starwort Caryophyllaceae Stellaria media* Common chickweed Caryophyllaceae Stellaria nitens Shining chickweed Caryophyllaceae Stenanthium occidentale Bronze bells Liliaceae Stephanomeria paniculata Stiff-branch wirelettuce Asteraceae Stephanomeria tenuifolia Bush wirelettuce Asteraceae Streptopus amplexifolius Clasping-leaved twisted-stalk Liliaceae Streptopus roseus Rosy twisted-stalk Liliaceae Suksdorfia violacea Violet suksdorfia Saxifragaceae Sullivantia oregana Sullivantia Saxifragaceae Symphoricarpos albus Common snowberry Caprifoliaceae Symphoricarpos mollis Creeping snowberry Caprifoliaceae Symphytum officinale* Common comprey Boraginaceae Synthyris missurica Mountain kittytails Scrophulariaceae Synthyris reniformis Snow-queen Scrophulariaceae Tanacetum vulgare* Common tansy Asteraceae Tauschia strictlandii Strictland's tauschia Apiaceae Teesdalia nudicaulis* Teesdalia Brassicaceae Tellima grandiflora Fringecup Saxifragaceae Thalictrum occidentale Western meadowrue Ranunculaceae Thelopodium laciniatum Thick-leaved thelepody Brassicaceae Thermopsis montana Mountain golden-pea Fabaceae Thlaspi fendleri Fendler's pennycress Brassicaceae Thysanocarpus curvipes Fringepod Brassicaceae Tiarella trifoliata Foamflower Saxifragaceae Tillaea aquatica Pigmy-weed Crassulaceae Tofieldia glutinosa Bog lily Liliaceae Tolmiea menziesii Youth-on-age Saxifragaceae Tonella tenella Small-flowered tenella Scrophulariaceae Torilis arvensis* Field torilis Apiaceae Tragopogon dubius* Oysterplant Asteraceae Tragopogon porrifolius* Salsify Asteraceae Trautvettaria caroliniensis False bugbane Ranunculaceae Tribulus terrestris* Puncture vine Zygophyllaceae Trientalis arctica Northern star-flower Primulaceae Trientalis latifolia Broadleaved starflower Primulaceae Trifolium arvense* Hare's-foot Fabaceae Trifolium ciliolatum Tree clover Fabaceae Trifolium cyathiferum Cup clover Fabaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 18 of 20 Trifolium dubium* Least hop clover Fabaceae Trifolium eriocephalum Wooly-head clover Fabaceae Trifolium hybridum* Alsike clover Fabaceae Trifolium macrocephalum Big-headed clover Fabaceae Trifolium microcephalum Woolly clover Fabaceae Trifolium pratense* Red clover Fabaceae Trifolium procumbens* Hop clover Fabaceae Trifolium repens* White clover Fabaceae Trifolium subterraneum* Subterranean clover Fabaceae Trifolium tridentatum Tomcat clover Fabaceae Trifolium vareigatum White-tip clover Fabaceae Trillium angustipetalum Wake-robin Liliaceae Trillium ovatum White trillium Liliaceae Triodanis perfoliata Venus'-looking-glass Campanulaceae Urtica dioica Stinging nettle Urticaceae Vaccinium oxycoccus Wild cranberry Ericaceae Valeriana scouleri Scouler's valerian Valerianaceae Valeriana sitchensis Sitka valerian Valerianaceae Valerianella locusta* European corn salad Valerianaceae Vancouveria hexandra Inside-out-flower Berberidaceae Veratrum californicum California false hellebore Liliaceae Veratrum insolitum Siskiyou false hellebore Liliaceae Veratrum viride Green false hellebore Liliaceae Verbascum blattaria* Moth mullein Scrophulariaceae Verbascum thapsus* Common mullein Scrophulariaceae Verbena bracteata Bracted vervain Verbenaceae Verbena hastata Blue vervain Verbenaceae Veronica americana American brooklime Scrophulariaceae Veronica anagallis-aquatica* Water pimpernel Scrophulariaceae Veronica arvensis* Field veronica Scrophulariaceae Veronica officinalis* Common speedwell Scrophulariaceae Veronica peregrina Purslane speedwell Scrophulariaceae Veronica scuttelata Marsh speedwell Scrophulariaceae Veronica serpyllifolia Thyme-leaf speedwell Scrophulariaceae Viburnum edule Highbush cranberry Caprifoliaceae Viburnum ellipticum Oregon viburnum Caprifoliaceae Vicia americana American vetch Fabaceae Vicia cracca* Cow vetch Fabaceae Vicia gigantea Giant vetch Fabaceae Vicia hirsuta* Tiny vetch Fabaceae Vicia sativa* Common vetch Fabaceae Vicia tetrasperma* Slender vetch Fabaceae Vicia villosa* Hairy vetch Fabaceae Vinca major* Periwinkle Apocynaceae Viola adunca Early blue violet Violaceae Viola glabella Stream violet Violaceae Viola howellii Howell's violet Violaceae Viola nuttallii Yellow prairie violet Violaceae Viola orbiculata Round-leaved violet Violaceae Viola palustris Marsh violet Violaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 19 of 20 Viola sempervirens Evergreen violet Violaceae Viola sheltonii Shelton's violet Violaceae Woodsia oregana Oregon woodsia Polypodiaceae Woodsia scopulina Rocky Mtn. woodsia Polypodiaceae Wyethia amplexicaulis Northern mule's ears Asteraceae Wyethia angustifolia Narrow-leaf mule's ears Asteraceae Xanthium strumarium* Cocklebur Asteraceae Xerophyllum tenax Beargrass Liliaceae Zigadenus paniculatus Panicled death-camas Liliaceae Zigadenus venenosus Meadow death camas Liliaceae

Columbia Gorge 2, Skamania and Klickitat Counties, WA, and Multnomah, Hood River and Wasco Counties, OR. WNPS Plant Lists. Page 20 of 20