The NatureMapping Program Washington Plant List Revised: 9/15/2011 Spokane County by Scientific Name (1) Non- native, (2) ID Scientific Name Common Name Plant Family Invasive √ 1142 Abies lasiocarpa Sub-alpine fir Pinaceae 763 Acer glabrum Douglas maple Aceraceae 5 Achillea millifolium Yarrow Asteraceae 1144 Aconitum columbianum Monkshood Ranunculaceae 8 Actaea rubra Baneberry Ranunculaceae 9 Adenocaulon bicolor Pathfinder Asteraceae 705 Agoseris glauca Mountain agoseris Asteraceae 11 Agropyron caninum Bearded wheatgrass Poaceae 560 Agropyron cristatum* Crested wheatgrass Poaceae 1 12 Agropyron repens* Quack grass Poaceae 1 744 Agropyron smithii Bluestem Poaceae 523 Agropyron spicatum Blue-bunch wheatgrass Poaceae 13 Agrostis alba* Red top Poaceae 1 799 Agrostis exarata* Spike bentgrass Poaceae 1 599 Agrostis interrupta* Interrupted apera Poaceae 1 1150 Agrostis scabra Tickle-grass Poaceae 15 Agrostis stolonifera Colonian bentgrass Poaceae 19 Alisma plantago-aquatica American waterplantain Alismataceae 718 Allium acuminatum Taper-tip onion Liliaceae 583 Allium geyeri Geyer's onion Liliaceae 626 Alnus incana Mountain alder Betulaceae 1153 Alopecurus aequalis Short-awned foxtail Poaceae 1155 Amaranthus blitoides Prostrate pigweed Amaranthaceae 805 Ambrosia acanthicarpa Bur ragweed Asteraceae 26 Amelanchier alnifolia Serviceberry Rosaceae 806 Amsinckia intermedia Fireweed fiddleneck Boraginaceae 536 Amsinckia lycopsoides Bugloss fiddleneck Boraginaceae 27 Amsinckia menziesii Menzies' fiddleneck Boraginaceae 28 Anaphalis margaritacea Pearly everlasting Asteraceae 1157 Anchusa officinalis* Alkanet Boraginaceae 1 622 Antennaria dimorpha Low pussy-toes Asteraceae 775 Antennaria luzuloides Woodrush pussy-toes Asteraceae 668 Antennaria microphylla Rosy pussy-toes Asteraceae 1165 Antennaria neglecta Field pussy-toes Asteraceae 1166 Antennaria parvifolia Nuttall's pussytoes Asteraceae 1168 Antennaria racemosa Raceme pussy-toes Asteraceae 699 Apocynum androsaemifolium Spreading dogbane Apocynaceae 813 Apocynum cannabinum Hemp dogbane Apocynaceae 1169 Apocynum medium Western dogbane Apocynaceae 35 Arabidopsis thaliana* Thale cress Brassicaceae 1 1171 Arabis divaricarpa Spreadingpod rockcress Brassicaceae 816 Arabis glabra Tower mustard Brassicaceae 817 Arabis holboellii Holboell's rockcress Brassicaceae 1177 Arabis nuttallii Nuttall's rockcress Brassicaceae 683 Arabis sparsiflora Sicklepod rockcress Brassicaceae 1180 Arceuthobium campylopodum Western dwarf mistletoe Loranthaceae 37 Arctium minus* Common burdock Asteraceae 1 38 Arctostaphylos uva-ursi Bearberry Ericaceae 1182 Arenaria capillaris Thread-leaved sandwort Caryophyllaceae 820 Arenaria congesta Dense-flowered sandwort Caryophyllaceae 533 Arenaria lateriflora Bluntleaf sandwort Caryophyllaceae 39 Arenaria macrophylla Big-leaf sandwort Caryophyllaceae 1186 Arenaria serpyllifolia* Thyme-leaf sandwort Caryophyllaceae 1 822 Aristida longiseta Red three-awn Poaceae 1189 Arnica cordifolia Heart-leaf arnica Asteraceae 590 Arnica fulgens Hillside arnica Asteraceae 1191 Arnica latifolia Mountain arnica Asteraceae 1192 Arnica longifolia Seep-spring arnica Asteraceae 1194 Arnica nevadensis Sierra arnica Asteraceae 823 Arnica sororia Twin arnica Asteraceae 1197 Artemesia absinthium* Absinthe Asteraceae 1 824 Artemesia campestris Northern wormwood Asteraceae 40 Artemesia douglasiana Douglas' sagewort Asteraceae 825 Artemesia dracunculus Tarragon Asteraceae 1201 Artemesia michauxiana Michaux mugwort Asteraceae 681 Asclepias speciosa Showy milkweed Asclepiadaceae 44 Asperugo procumbens* Madwort Boraginaceae 1 827 Aster campestris Western meadow aster Asteraceae 1211 Aster conspicuus Showy aster Asteraceae 45 Aster eatonii Eaton's aster Asteraceae 1212 Aster engelmannii Engelman's aster Asteraceae 1214 Aster foliaceus Leafy aster Asteraceae 1216 Aster modestus Great northern aster Asteraceae 1217 Aster occidentalis Western aster Asteraceae 828 Aster pansus Wreath aster Asteraceae 497 Aster sp. Aster Asteraceae 46 Aster subspictus Douglas' aster Asteraceae 1218 Astragalus adsurgens Prairie milk-vetch Fabaceae 657 Astragalus agrestis Purple milkvetch Fabaceae 829 Astragalus canadensis Canada milk-vetch Fabaceae 836 Astragalus purshii Pursh's milk-vetch Fabaceae 47 Athyrium filix-femina Lady fern Polypodiaceae 621 Atriplex truncata Wedgescale orache Chenopodiaceae 1226 Avena fatua* Wild oats Poaceae 1 495 Balsamorhiza sagittata Arrow-leaf balsamroot Asteraceae 51 Barbarea orthoceras American wintercress Brassicaceae 1229 Beckmannia syzigachne Sloughgrass Poaceae 52 Berberis aquifolium Tall Oregongrape Berberidaceae 53 Berberis nervosa Cascade Oregongrape Berberidaceae 559 Berberis repens Creeping Oregongrape Berberidaceae 1230 Berula erecta Cutleaf water-parsnip Apiaceae 780 Betula occidentalis Water birch Betulaceae 749 Betula papyrifera Paper birch Betulaceae 56 Bidens frondosa Leafy beggar-ticks Asteraceae 1232 Bidens vulgata Tall beggar-ticks Asteraceae 845 Boisduvalia densiflora Dense spike-primrose Onagraceae 1236 Brickellia grandiflora Large-flowered brickellia Asteraceae 1237 Brickellia oblongifolia Thoroughwort Asteraceae 564 Brodiaea douglasii Douglas' brodiaea Liliaceae 662 Bromus brizaeformis* Rattlesnake grass Poaceae 1 1238 Bromus carinatus California brome Poaceae 1239 Bromus ciliatus Fringed brome Poaceae Common chess/Hairy Bromus commutatus* Poaceae 551 brome 1 693 Bromus inermis* Smooth brome Poaceae 1 601 Bromus japonicus* Japanese brome Poaceae 1 59 Bromus mollis* Soft brome Poaceae 1 1240 Bromus secalinus* Chess Poaceae 1 62 Bromus tectorum* Cheat grass Poaceae 1 Common (Narrow-leaf) 522 Bromus vulgaris brome Poaceae 63 Calamagrostis canadensis Bluejoint Poaceae 847 Calamagrostis neglecta Slimstem reedgrass Poaceae 648 Calamagrostis rubescens Pinegrass Poaceae 1242 Calamagrostis stricta Slim-stem reegrass Poaceae 851 Calochortus macrocarpus Sagebrush mariposa Liliaceae 569 Calypso bulbosa Fairy slipper Orchidaceae 852 Camelina microcarpa* Hairy false-flax Brassicaceae 1 553 Campanula rotundifolia Common harebell Campanulaceae 68 Capsella bursa-pastoris* Shepherd's purse Brassicaceae 1 72 Cardamine oligosperma Little Western bittercress Brassicaceae 1246 Cardamine pennsylvanica Pennsylvania bittercress Brassicaceae 1250 Carex amplifolia Big-leaf sedge Cyperaceae 1251 Carex aquatilis Water sedge Cyperaceae 1252 Carex arcta Northern clustered sedge Cyperaceae 74 Carex athrostachya Slender-beak sedge Cyperaceae 1255 Carex aurea Golden sedge Cyperaceae 855 Carex bebbii Bebb's sedge Cyperaceae 1261 Carex concinnoides Northwest sedge Cyperaceae 1263 Carex cusickii Cusick's sedge Cyperaceae 1264 Carex diandra Lesser panicled sedge Cyperaceae 857 Carex douglasii Douglas' sedge Cyperaceae 737 Carex filifolia Thread-leaf sedge Cyperaceae 858 Carex hoodii Hood's sedge Cyperaceae 1269 Carex interior Inland sedge Cyperaceae 861 Carex lanuginosa Wooly sedge Cyperaceae 1271 Carex lasiocarpa Slender sedge Cyperaceae 1272 Carex lenticularis Lenticular sedge Cyperaceae 1273 Carex leptalea Bristle-stalked sedge Cyperaceae 1284 Carex pachystachya Pachystachy sedge Cyperaceae 863 Carex pellita Woolly sedge Cyperaceae 864 Carex petasata Liddon's sedge Cyperaceae 1285 Carex phaeocephala Mountain hare sedge Cyperaceae 865 Carex praegracilis Silver sedge Cyperaceae 1288 Carex rossii Ross' sedge Cyperaceae 1291 Carex scopulorum Rocky Mtn. sedge Cyperaceae 80 Carex stipata Sawbeak sedge Cyperaceae 1295 Carex sychnocephala Many-headed sedge Cyperaceae 1296 Carex utriculata Beaked sedge Cyperaceae 598 Carex vesicaria Inflated sedge Cyperaceae 1300 Castilleja cervina Deer paintbrush Scrophulariaceae 1301 Castilleja cusickii Cusick's paintbrush Scrophulariaceae 869 Castilleja exilis Alkali paintbrush Scrophulariaceae 1303 Castilleja miniata Scarlet paintbrush Scrophulariaceae 870 Castilleja thompsonii Thompson's paintbrush Scrophulariaceae 81 Ceanothus sanguineus Redstem ceanothus Rhamnaceae 1307 Ceanothus velutinus Snowbrush Rhamnaceae 872 Centaurea diffusa* Diffuse knapweed Asteraceae 1 508 Centaurea maculosa Spotted knapweed Asteraceae 873 Centaurea repens* Russian knapweed Asteraceae 1 1310 Cerastium arvense Field chickweed Caryophyllaceae 84 Cerastium vulgatum* Mouse-ear chickweed Caryophyllaceae 1 594 Ceratophyllum demersum Hornwort Ceratophyllaceae 874 Chaenactis douglasii Dusty maidens Asteraceae 86 Chenopodium album* Pigweed Chenopodiaceae 1 876 Chenopodium botrys* Jerusalem oak Chenopodiaceae 1 1313 Chenopodium capitatum Blite goosefoot Chenopodiaceae 877 Chenopodium chenopodioides Red goosefoot Chenopodiaceae 87 Chenopodium hybridum Sowbane Chenopodiaceae 1317 Chenopodium rubrum* Red goosefoot Chenopodiaceae 1 1318 Chenopodium simplex Large-seeded goosefoot Chenopodiaceae 88 Chimaphila umbellata Pipsissewa Ericaceae 510 Chorispora tenella* Blue mustard Brassicaceae 1 89 Chrysanthemum leucanthemum* Ox-eye daisy Asteraceae 1 1319 Chrysopsis villosa Hairy golden-aster Asteraceae 880 Chrysothamnus nauseosus Gray rabbit-brush Asteraceae 881 Chrysothamnus viscidiflorus Green rabbit-brush Asteraceae 544 Cichorium intybus* Chicory Asteraceae 1 774 Cicuta douglasii Water-hemlock Apiaceae 1321 Cinna latifolia Reedgrass Poaceae 90 Circaea alpina Enchanter's nightshade Onagraceae 91 Circium arvense* Canada thistle Asteraceae 1 92 Circium vulgare* Bull thistle Asteraceae 1 1323 Cirsium brevistylum Indian thistle Asteraceae 661 Clarkia pulchella Ragged Robin Onagraceae 1327 Clarkia rhomboidea Common clarkia Onagraceae 883 Claytonia lanceolata Western spring beauty Portulacaceae 1328 Claytonia parviflora Streambank spring beauty Portulacaceae 884 Claytonia rubra Red miner's lettuce Portulacaceae 1329 Clematis columbiana Columbia virgin's bower Ranunculaceae 886 Clematis lingusticifolia Virgin's bower Ranunculaceae 1330 Cleome serrulata Stinkweed Capparidaceae 1331 Clintonia uniflora Queen's cup Liliaceae Small-flowered blue-eyed Collinsia parviflora Scrophulariaceae 689 Mary 94 Collomia grandiflora Large-flowered collomia Polemoniaceae 890 Collomia linearis Narrow-leaf collomia Polemoniaceae 892 Comandra umbellata Bastard toad-flax Santalaceae 97 Convolvulus arvensis* Field morning-glory Convolvulaceae 1 460 Convolvulus sepium* Hedge bindweed (Lady's nig Convolvulaceae 1 98 Conyza canadensis* Horseweed Asteraceae 1 99 Corallorhiza maculata Spotted coral-root Orchidaceae 894 Coreopsis atkinsoniana Columbia tickseed Asteraceae 1335 Cornus canadensis Bunchberry Cornaceae 101 Cornus sericea (syn. Stolonifera) Red-osier dogwood Cornaceae 1 896 Corydalis aurea Golden corydalis Fumariaceae 1336 Crataegus chrysocarpa Fireberry hawthorn Rosaceae 897 Crataegus columbiana Columbia hawthorn Rosaceae 106 Crataegus douglasii Black hawthorn Rosaceae 898 Crepis acuminata Tapertip hawksbeard Asteraceae 899 Crepis atrabarba Slender hawksbeard Asteraceae 901 Crepis barbigera Bearded hawksbeard Asteraceae 1338 Crepis gracilis Graceful hawk's-beard Asteraceae 902 Crepis intermedia Gray hawksbeard Asteraceae 904 Crepis occidentalis Western hawksbeard Asteraceae 109 Crepis runcinata Dandelion hawksbeard Asteraceae 506 Crepis sp. Crepis sp. Asteraceae 1339 Cryptantha affinis Slender cryptantha Boraginaceae 906 Cryptantha ambigua Obscure cryptantha Boraginaceae 907 Cryptantha celosioides Northern cryptantha Boraginaceae 781 Cryptantha torreyana Torrey's cryptantha Boraginaceae 1344 Cuscuta californica Western dodder Cuscutaceae 915 Cymopteris terebinthinus Turpentine spring-parsley Apiaceae 1347 Cyperus aristatus Awned flatsedge Cyperaceae 790 Cypripedium calceolus Yellow lady's-slipper Orchidaceae 1349 Cypripedium montanum Mountain lady's-slipper Orchidaceae 580 Cystopteris fragilis Fragile fern Polypodiaceae 112 Dactylis glomerata* Orchard grass Poaceae 1 1350 Danthonia intermedia Timber oatgrass Poaceae 1352 Delphinium burkei Meadow larkspur Ranunculaceae 666 Delphinium nuttallianum Upland larkspur Ranunculaceae 114 Deschampsia caespitosa Tufted hairgrass Poaceae 494 Deschampsia danthonioides Annual hairgrass Poaceae 1355 Deschampsia elongata Slender hairgrass Poaceae 782 Descurainia pinnata Western tansymustard Brassicaceae 1356 Descurainia richardsonii Mountain tansymustard Brassicaceae 579 Descurainia sophia* Flixweed Brassicaceae 1 118 Disporum hookeri Hooker fairy-bell Liliaceae 684 Disporum trachycarpum Sierra fairy-bell Liliaceae 119 Distichlis spicata Seashore salt grass Poaceae 563 Dodecatheon conjugens Desert shooting star Primulaceae 921 Dodecatheon cusickii Cusick's shooting star Primulaceae 1359 Dodecatheon jeffreyi Jeffrey's shooting star Primulaceae 575 Dodecatheon pulchellum Few-flowered shooting star Primulaceae 1364 Draba nemerosa Wood's draba Brassicaceae 120 Draba verna Spring whitlow-grass Brassicaceae 1370 Dracocephalum parviflorum American dragonhead Lamiaceae 1372 Echinochloa crus-galli* Barnyard-grass Poaceae 1 924 Eleocharis acicularis Needle spike-rush Cyperaceae 123 Eleocharis palustris Common spike-rush Cyperaceae 698 Eleocharis sp. Spikerush Cyperaceae 125 Elodea canadensis Canadian waterweed Hydrocharitaceae 1 1378 Elymus canadensis Nodding wildrye Poaceae 584 Elymus cinereus Giant rye grass Poaceae 1381 Elymus macounii Macoun's barley Poaceae 1383 Epilobium alpinum Alpine willow-herb Onagraceae 126 Epilobium angustifolium Fireweed Onagraceae 926 Epilobium minutum Small-flowered willow-herb Onagraceae 127 Epilobium paniculatum Tall annual willow-herb Onagraceae 128 Epilobium watsonii Watson's willow-herb Onagraceae 927 Epipactis gigantea Giant helleborine Orchidaceae 129 Equisetum arvense Common horsetail Equisetaceae 2 130 Equisetum hyemale Scouring rush Equisetaceae 694 Equisetum laevigatum Smooth scouring-rush Equisetaceae 1389 Equisetum variegatum Northern scouringrush Equisetaceae 1392 Erigeron compositus Cut-leaved daisy Asteraceae 929 Erigeron corymbosus Long-leaf fleabane Asteraceae 930 Erigeron divergens Spreading daisy Asteraceae 931 Erigeron filifolius Thread-leaf fleabane Asteraceae 932 Erigeron linearis Desert yellow daisy Asteraceae 934 Erigeron piperianus Piper's daisy Asteraceae 935 Erigeron poliospermus Cushion fleabane Asteraceae 936 Erigeron pumilus Shaggy fleabane Asteraceae 578 Erigeron sp. Fleabane Asteraceae 1396 Erigeron speciosus Showy fleabane Asteraceae 1397 Erigeron strigosus Daisy fleabane Asteraceae 637 Eriogonum compositum Northern buckwheat Polygonaceae Parsnip-flowered Eriogonum heracleoides Polygonaceae 646 buckwheat 696 Eriogonum niveum Snow buckwheat Polygonaceae 708 Eriogonum umbellatum Sulfur buckwheat Polygonaceae 943 Eriophyllum lanatum Oregon sunshine Asteraceae 133 Erodium cicutarium* Filaree Geraniaceae 1 1404 Erysimum cheiranthoides Treacle mustard Brassicaceae 1405 Erythronium grandiflorum Glacier lily Liliaceae 946 Euphorbia glyptosperma Ribseed sandmat Euphorbiaceae 1407 Euphorbia myrsinites* Myrtle spurge Euphorbiaceae 1 784 Euphorbia serpyllifolia* Thyme-leaf spurge Euphorbiaceae 1 137 Festuca bromoides* Barren fescue Poaceae 1 503 Festuca idahoensis Blue bunchgrass Poaceae 948 Festuca microstachys Small fescue Poaceae 138 Festuca myuros* Rat-tail fescue Poaceae 1 711 Festuca occidentalis Western fescue Poaceae 1408 Festuca ovina Sheep fescue Poaceae 140 Festuca rubra Red fescue Poaceae 1409 Festuca scabrella Rough fescue Poaceae 1410 Festuca subulata Bearded fescue Poaceae 1411 Festuca viridula Green fescue Poaceae 1413 Filago arvensis* Filago Asteraceae 1 570 Floerkea proserpinacoides False mermaid Limnanthaceae 142 Fragaria vesca Wild strawberry Rosaceae 1414 Fragaria virginiana Woods strawberry Rosaceae 549 Frasera albicaulis Columbia frasera Gentianaceae 1415 Fritillaria lanceolata Chocolate lily Liliaceae 552 Fritillaria pudica Yellow bell Liliaceae 502 Gaillardia aristata Blanket-flower Asteraceae 145 Galium aparine Cleavers Rubiaceae 636 Galium boreale Northern bedstraw Rubiaceae 148 Galium trifidum Small bedstraw Rubiaceae 149 Galium triflorum Fragrant bedstraw Rubiaceae 952 Gayophytum diffusum Spreading groundsmoke Onagraceae 1418 Gayophytum humile Dwarf groundsmoke Onagraceae 953 Gentiana affinis Pleated gentian Gentianaceae 627 Gentiana calycosa Mountain bog gentian Gentianaceae 499 Geranium bicknellii Bicknell's geranium Geraniaceae 954 Geranium carolinianum Wild geranium Geraniaceae 1422 Geum aleppicum Yellow avens Rosaceae 154 Geum macrophyllum Large-leaved avens Rosaceae 656 Geum triflorum Prairie smoke Rosaceae 956 Gilia minutiflora Small-flowered gilia Polemoniaceae 157 Glyceria borealis Northern mannagass Poaceae 159 Glyceria grandis Reed mannagrss Poaceae 958 Glyceria striata Fowl mannagrass Poaceae 960 Gnaphalium palustre Lowland cudweed Asteraceae 1426 Gratiola neglecta American hedge-hyssop Scrophulariaceae 961 Grindelia nana Low gumweed Asteraceae 665 Grindelia squarrosa Resinweed Asteraceae 730 Gymnocarpium dryopteris Oak fern Polypodiaceae 1427 Gypsophila paniculata* Baby's breath Caryophyllaceae 1 1428 Habenaria dilatata White bog-orchid Orchidaceae 1430 Habenaria hyperborea Northern green bog-orchid Orchidaceae 1432 Habenaria saccata Slender bog-orchid Orchidaceae 164 Habenaria unalascensis Alaska rein-orchid Orchidaceae 963 Hackelia ciliata Okanogon stickseed Boraginaceae 965 Hackelia diffusa Sagebrush stickseed Boraginaceae 1435 Haplopappus carthemoides Large-flowered goldenweed Asteraceae 971 Helianthella uniflora Little-sunflower Asteraceae 167 Heracleum lanatum Cow parsnip Apiaceae 1440 Heterocodon rariflorum Heterocodon Campanulaceae 611 Heuchera cylindrica Lava alumroot Saxifragaceae 168 Hieracium albiflorum White-flowered hawkweed Asteraceae 596 Hieracium cynoglossoides Hounds-tongue hawkweed Asteraceae 974 Hieracium scouleri Scouler's hawkweed Asteraceae 1444 Hieracium umbellatum Narrow-leaf hawkweed Asteraceae 1445 Hierochloe odorata Sweetgrass Poaceae 169 Hippuris vulgaris Mare's tail Hippuridacee 171 Holodiscus discolor Ocean spray Rosaceae 173 Hordeum jubatum Foxtail barley Poaceae 1446 Hutchinsia procumbens Hutchinsia Brassicaceae 786 Hydrophyllum capitatum Woolly breeches Hydrophyllaceae 177 Hypericum perforatum* Klamath weed Hypericaceae 1 1449 Hypericum scouleri Scouler's St. John's-wort Hypericaceae 1451 Iliamna rivularis Streambank globemallow Malvaceae 182 Impatiens noli-tangere Touch-me-not Balsaminaceae 788 Iris missouriensis Western blue flag Iridaceae 980 Iva xanthifolia Tall marsh-elder Asteraceae 185 Juncus acuminatus Tapered rush Juncaceae 187 Juncus balticus Baltic rush Juncaceae 189 Juncus bufonius* Toad rush Juncaceae 1 1452 Juncus confusus Colorado rush Juncaceae 191 Juncus ensifolius Daggerleaf rush Juncaceae 1454 Juncus filiformis Thread rush Juncaceae 981 Juncus longistylus Long-beaked rush Juncaceae 982 Juncus nevadensis Sierra rush Juncaceae 1457 Juncus parryi Parry's rush Juncaceae 669 Juncus sp. Rush Juncaceae 193 Juncus tenuis Slender (tapered) rush Juncaceae 984 Juniperus scopulorum Rocky Mountain juniper Cupressaceae 655 Koeleria cristata Prairie junegrass Poaceae 505 Lactuca pulchella Blue lettuce Asteraceae 196 Lactuca serriola* Prickly lettuce Asteraceae 1 1462 Lappula echinata* Bristly stickseed Boraginaceae 1 986 Lappula redowskii Western stickseed Boraginaceae 1464 Larix occidentalis Western larch Pinaceae 701 Lemna trisulca Star duckweed Lemnaceae 203 Lepidium virginicum* Tall pepperweed Brassicaceae 1 988 Leptodactylon pungens Prickly phlox Polemoniaceae 500 Lewisia rediviva Bitterroot Portulacaceae 1471 Ligusticum canbyi Canby's lovage Apiaceae 205 Lilium columbianum Tiger lily Liliaceae 993 Linanthus pharnaceoides Theadleaf linanthus Polemoniaceae 562 Linaria dalmatica* Dalmatian toad-flax Scrophulariaceae 1 537 Linaria vulgaris* Butter-and-eggs Scrophulariaceae 1 206 Linnaea borealis Twinflower Caprifoliaceae 789 Linum perenne Wild blue-flax Linaceae 1474 Listera caurina Northwestern twayblade Orchidaceae 994 Listera convallarioides Broad-lipped twayblade Orchidaceae 695 Lithophragma glabrum Smooth woodlandstar Saxifragaceae 690 Lithophragma parviflorum Small-flowered prairie-star Saxifragaceae 558 Lithospermum arvense* Corn gromwell Boraginaceae 1 550 Lithospermum ruderale Columbia puccoon Boraginaceae 709 Lomatium ambiguum Swale desert-parsley Apiaceae 573 Lomatium dissectum Fern-leaf biscuit-root Apiaceae Coeur d'Alene desert- Lomatium farinosum Apiaceae 548 parsley 582 Lomatium geyeri Geyer's desert-parsley Apiaceae 586 Lomatium gormanii Gorman's desert-parsley Apiaceae 998 Lomatium grayi Gray's desert-parsley Apiaceae 609 Lomatium macrocarpum Large-fruited lomatium Apiaceae 634 Lomatium triternatum Nine-leaf lomatium Apiaceae 212 Lonicera involucrata Twinberry Caprifoliaceae 1478 Lonicera utahensis Utah honeysuckle Caprifoliaceae 216 Lotus purshiana Spanish clover Fabaceae 1004 Lupinus laxiflorus Spurred lupine Fabaceae 1005 Lupinus lepidus Prairie lupine Fabaceae 501 Lupinus leucophyllus Velvet lupine Fabaceae 220 Lupinus polyphyllus Big-leaf lupine Fabaceae 685 Lupinus sericeus Silky lupine Fabaceae 1008 Lupinus sulphureus Sulphur lupine Fabaceae 222 Luzula campestris Field woodrush Juncaceae 472 Luzula hitchcockii Smooth woodrush Juncaceae 223 Luzula parviflora Small-flowered woodrush Juncaceae 226 Lycopus americanus Water hoarhound Lamiaceae 1495 Lycopus asper Rough bugleweed Lamiaceae 1496 Lygodesmia juncea Rush-like skelatonweed Asteraceae 581 Lysimachia ciliata Fringed loosestrife Primulaceae 769 Lythrum salicaria* Purple loosestrife Lythraceae 1 591 Machaeranthera canescens Hoary aster Asteraceae 616 Madia exigua Little tarweed Asteraceae 629 Madia glomerata Mountain tarweed Asteraceae 556 Madia gracilis Common tarweed Asteraceae 691 Madia minima Small-head tarweed Asteraceae 232 Malva neglecta* Dwarf mallow Malvaceae 1 592 Marrubium vulgare* Horehound Lamiaceae 1 1011 Marsilea vestita Clover fern Marsileaceae 233 Matricaria matricarioides* Pineapple weed Asteraceae 1 234 Medicago hispida* Alfalfa Fabaceae 1 235 Medicago lupulina* Black medic Fabaceae 1 1499 Melica spectabilis Showy oniongrass Poaceae 236 Melilotus alba* White sweet-clover Fabaceae 1 238 Melilotus officinalis* Yellow sweet-clover Fabaceae 1 239 Mentha arvensis Field mint Lamiaceae 1014 Mentzelia albicaulis White-stemmed mentzelia Loasaceae 1015 Mentzelia dispersa Bushy mentzelia Loasaceae 1016 Mentzelia laevicaulis Blazingstar Loasaceae 1500 Menziesia ferruginea Fool's huckleberry Ericaceae 688 Mertensia longiflora Small bluebells Boraginaceae 1017 Mertensia oblongifolia Leafy bluebells Boraginaceae 241 Mertensia paniculata Tall bluebells Boraginaceae 1018 Microseris nutans Nodding microseris Asteraceae 1019 Microseris troximoides Wavyleaf microseris Asteraceae 649 Microsteris gracilis Pink microsteris Polemoniaceae 1502 Mimulus breviflorus Short-flowered monkey-floweScrophulariaceae 1021 Mimulus floribundus Purple-stem monkey-flower Scrophulariaceae 242 Mimulus gutattus Common monkey-flower Scrophulariaceae 243 Mimulus moschatus Musk-flower Scrophulariaceae 1510 Mitella trifida Three-tooth mitrewort Saxifragaceae 1512 Monolepis nuttalliana Patata Chenopodiaceae 1513 Montia cordifolia Broad-leafed montia Portulacaceae 246 Montia dichotoma Dwarf montia Portulacaceae 631 Montia linearis Narrow-leaf montia Portulacaceae 247 Montia perfoliata Miner's lettuce Portulacaceae 248 Montia siberica Candyflower Portulacaceae 1517 Muhlenbergia richardsonis Mat muhly Poaceae 504 Myosotis micrantha* Blue forget-me-not Boraginaceae 1 1519 Myosurus aristatus Sedge mousetail Ranunculaceae 697 Myriophyllum spicatum* Spiked water-milfoil Haloragaceae 1 1520 Myriophyllum verticillatum Whorled water-milfoil Haloragaceae 633 Navarretia intertexta Needle-leaf navarretia Polemoniaceae 1522 Nemophila breviflora Great Basin nemophila Hydrophyllaceae 541 Nepeta cataria* Catnip Lamiaceae 1 1029 Oenothera andina Tiny evening-primrose Onagraceae 630 Orobanche uniflora Naked broom-rape Orobanchaceae 1042 Orthocarpus hispidus Hairy owl-clover Scrophulariaceae 1526 Orthocarpus luteus Yellow owl-clover Scrophulariaceae 729 Orthocarpus tenuifolius Thin-leaved owl-clover Scrophulariaceae 532 Osmorhiza depauperata Blunt-fruited sweet-cicely Apiaceae 264 Osmorhiza occidentalis Western sweet-cicely Apiaceae 1532 Panicum acuminatum Panicgrass Poaceae 640 Panicum capillare* Old witchgrass Poaceae 1 1533 Parietaria pennsylvanica Pellitory Urticaceae 1536 Parthenocissus vitacea* Virginia creeper Vitaceae 1 1538 Pedicularis bracteosa Bracted lousewort Scrophulariaceae 1539 Pedicularis groenlandica Elephant's head Scrophulariaceae 1541 Pedicularis racemosa Sickletop lousewort Scrophulariaceae 1050 Penstemon confertus Yellow penstemon Scrophulariaceae 595 Penstemon deustus Hot-rock penstemon Scrophulariaceae 1544 Penstemon fruticosus Shrubby penstemon Scrophulariaceae 1055 Penstemon richardsonii Richardson's penstemon Scrophulariaceae 1056 Penstemon speciosus Showy penstemon Scrophulariaceae 1551 Perideridia gairdneri Yampah Apiaceae 787 Phacelia hastata White-leaf phacelia Hydrophyllaceae 1554 Phacelia heterophylla Varileaf phacelia Hydrophyllaceae 733 Phacelia linearis Thread-leaf phacelia Hydrophyllaceae 270 Phalaris arundinacea* Reed canarygrass Poaceae 2 679 Philadelphus lewisii Mock-orange Hydrangeaceae 271 Phleum pratense* Timothy Poaceae 1 793 Phlox caespitosa Tufted phlox Polemoniaceae 1063 Phlox diffusa Spreading phlox Polemoniaceae 1064 Phlox hoodii Hood's phlox Polemoniaceae 1065 Phlox longifolia Long-leaf phlox Polemoniaceae 682 Phlox speciosa Showy phlox Polemoniaceae 623 Physocarpus malvaceus Mallow ninebark Rosaceae 275 Pinus contorta Lodgepole pine Pinaceae 1565 Pinus monticola Western white pine Pinaceae 653 Pinus ponderosa Ponderosa pine Pinaceae 675 Plagiobothrys scouleri Scouler's popcorn-flower Boraginaceae 1566 Plagiobothrys tenellus Slender popcorn-flower Boraginaceae 276 Plantago lanceolata* English plantain Plantaginaceae 1 277 Plantago major* Common plantain Plantaginaceae 1 539 Plantago patagonica Candleweed Plantaginaceae 798 Plectritis macrocera White plectritus Valerianaceae 735 Poa bulbosa* Bulbous bluegrass Poaceae 1 280 Poa compressa Canadian bluegrass Poaceae 1072 Poa nervosa Wheeler's bluegrass Poaceae 281 Poa palustris* Fowl meadow-grass Poaceae 1 282 Poa pratensis* Kentucky bluegrass Poaceae 1 673 Poa sandbergii Sandberg's bluegrass Poaceae 1075 Poa secunda Merrill's bluegrass Poaceae 1573 Polemonium californicum California Jacob's-ladder Polemoniaceae 620 Polemonium micranthum Littlebells polemonium Polemoniaceae 1576 Polemonium occidentale Western polemonium Polemoniaceae 1577 Polemonium pulcherrimum Showy Jacob's ladder Polemoniaceae 284 Polygonum amphibium Water smartweed Polygonaceae 285 Polygonum aviculare* Doorweed Polygonaceae 1 710 Polygonum coccineum Swamp persicaria Polygonaceae 286 Polygonum convolvulus* Black bindweed Polygonaceae 1 1077 Polygonum douglasii Douglas' knotweed Polygonaceae 288 Polygonum lapathifolium* Willow weed Polygonaceae 1 794 Polygonum majus Wiry knotweed Polygonaceae 1584 Polygonum spergulariaeforme Spurry knotweed Polygonaceae 1078 Polypogon monspeilensis* Rabbitsfoot grass Poaceae 1 291 Polystichum munitum Sword fern Polypodiaceae 294 Populus tremuloides Quaking aspen Salicaceae 295 Populus trichocarpa Black cottonwood Salicaceae 1591 Potamogeton amplifolius Large-flowered pondweed Potamogetonaceae 1079 Potamogeton gramineus Grass-leaved pondweed Potamogetonaceae 1594 Potamogeton illinoensis Illinois pondweed Potamogetonaceae 299 Potamogeton natans Floating-leaf pondweed Potamogetonaceae 300 Potamogeton pectinatus Fennel-leaf pondweed Potamogetonaceae 1596 Potamogeton pusillus Small pondweed Potamogetonaceae Potamogeton richardsonii Richardson's pondweed Potamogetonaceae 667 1597 Potamogeton robbinsii Robbin's pondweed Potamogetonaceae Potamogeton zosteriformis Eel-grass pondweed Potamogetonaceae 567 301 Potentilla anserina Common silverweed Rosaceae 1080 Potentilla arguta Tall cinquefoil Rosaceae 1081 Potentilla biennis Biennial cinquefoil Rosaceae 1601 Potentilla fruticosa Shrubby cinquefoil Rosaceae 702 Potentilla glandulosa Sticky cinquefoil Rosaceae 302 Potentilla gracilis Graceful cinquefoil Rosaceae 628 Potentilla norvegica* Norwegian cinquefoil Rosaceae 1 304 Potentilla palustris Marsh cinquefoil Rosaceae 1083 Potentilla rivalis Brook cinquefoil Rosaceae 305 Prunella vulgaris Self-heal Lamiaceae 308 Prunus emarginata Bitter cherry Rosaceae 1607 Prunus mahalub* Mahalub cherry Rosaceae 1 310 Prunus virginiana Chokecherry Rosaceae 311 Pseudotsuga menziesii Douglas fir Pinaceae 313 Pteridium aquilinum Bracken Polypodiaceae 2 647 Pterospora andromedea Pinedrops Ericaceae 315 Puccinellia pauciflora Weak alkaligrass Poaceae 1085 Purshia tridentata Bitterbrush Rosaceae 316 Pyrola asarifolia Pink wintergreen Ericaceae 1609 Pyrola chlorantha Green wintergreen Ericaceae 641 Pyrola secunda One-sided wintergreen Ericaceae 1611 Ranunculus alismaefolius Water-plantain buttercup Ranunculaceae 796 Ranunculus aquatilis Water buttercup Ranunculaceae 1086 Ranunculus cymbalaria Shore buttercup Ranunculaceae 1613 Ranunculus flammula Lesser spearwort Ranunculaceae 672 Ranunculus glaberrimus Sagebrush buttercup Ranunculaceae 1614 Ranunculus gmelinii Gmelin's buttercup Ranunculaceae 1615 Ranunculus macounii Macoun's buttercup Ranunculaceae 1616 Ranunculus pensylvanicus Bristly buttercup Ranunculaceae 542 Ranunculus sceleratus Celery-leaved buttercup Ranunculaceae 324 Ranunculus uncinatus Little buttercup Ranunculaceae 1618 Rhamnus alnifolia Alder buckthorn Rhamnaceae 1619 Rhinanthus cristi-galli Rattle-box Scrophulariaceae 1087 Rhus glabra Sumac Anacardiaceae 650 Rhus radicans Poison ivy Anacardiaceae 546 Ribes cereum Wax currant Grossulariaceae 1622 Ribes hudsonianum Northern black currant Grossulariaceae 785 Ribes inerme Whitestem gooseberry Grossulariaceae 329 Ribes lacustre Prickly currant Grossulariaceae 1623 Ribes oxyacanthoides Northern gooseberry Grossulariaceae 1624 Ribes viscosissimum Sticky currant Grossulariaceae 332 Rorippa curvisiliqua Western yellowcress Brassicaceae 333 Rorippa islandica Marsh yellowcress Brassicaceae 479 Rorippa nasturtium-aquaticum* Watercress Brassicaceae 1 1090 Rorippa obtusa Blunt-leaf yellowcress Brassicaceae 334 Rosa gymnocarpa Baldhip rose Rosaceae 335 Rosa nutkana Nootka rose Rosaceae 610 Rosa woodsii Wood's rose Rosaceae 511 Rubus idaeus* Red raspberry Rosaceae 1 339 Rubus leucodermis Blackcap Rosaceae 340 Rubus parviflorus Thimbleberry Rosaceae 343 Rumex acetocella* Sheep sorrel Polygonaceae 1 344 Rumex crispus* Sour dock Polygonaceae 1 345 Rumex maritimus Golden dock Polygonaceae 347 Rumex occidentalis Western dock Polygonaceae 1629 Rumex salicifolius Willow dock Polygonaceae 1091 Rumex venosus Winged dock Polygonaceae 1092 Salix amygdaloides Peachleaf willow Salicaceae 1635 Salix bebbiana Bebb willow Salicaceae 1638 Salix drummondiana Drummond's willow Salicaceae 1093 Salix exigua Coyote willow Salicaceae 1641 Salix lutea Yellow willow Salicaceae 1094 Salix rigida Mackenzie willow Salicaceae 354 Salix scouleriana Scouler willow Salicaceae 356 Salix sp. Willow Salicaceae 671 Salsola kali* Russian thistle Chenopodiaceae 1 1095 Salvia dorrii Gray ball sage Lamiaceae 357 Sambucus cerulea Blue elderberry Caprifoliaceae 358 Sambucus racemosa Red elderberry Caprifoliaceae 1650 Sanicula marilandica Black snake-root Apiaceae 587 Saxifraga integrifolia Grassland saxifrage Saxifragaceae 1097 Saxifraga nidifica Nesting saxifrage Saxifragaceae 1098 Saxifraga occidentalis Western saxifrage Saxifragaceae 1664 Scheuchzeria palustris Scheuchzeria Scheuchzeriaceae 1665 Schoenoplectus maritimus Cosmopolitan bulrush Cyperaceae 361 Scirpus acutus Hard-stem bulrush Cyperaceae 362 Scirpus americanus Three-square bulrush Cyperaceae 364 Scirpus microcarpus Small-flowered bulrush Cyperaceae 1101 Scrophularia lanceolata Lance-leaf figwort Scrophulariaceae 1102 Scutellaria angustifolia Narrow-leaved skullcap Lamiaceae 367 Scuttelaria galericulata Marsh scullcap Lamiaceae 368 Scuttelaria lateriflora Mad-dog skullcap Lamiaceae 518 Sedum lanceolatum Lance-leaved stonecrop Crassulaceae 783 Sedum stenopetalum Worm-leaf stonecrop Crassulaceae 557 Selaginella densa Compact selaginella Selaginellaceae 1103 Selaginella wallacei Wallace's selaginella Selaginellaceae 1669 Senecio foetidus Sweet-marsh butterweed Asteraceae 779 Senecio integerrimus Western groundsel Asteraceae 1672 Senecio pauciflorus Rayless alpine butterweed Asteraceae 372 Setaria lutescens* Yellow foxtail Poaceae 1 1677 Setaria viridus* Green foxtail Poaceae 1 1678 Shepherdia canadensis Buffalo berry Elaeagnaceae 643 Sidalcea oregana Oregon checkermallow Malvaceae 1682 Silene antirrhina* Sleepy catchfly Caryophyllaceae 1 1106 Silene douglasii Douglas' silene Caryophyllaceae 1107 Silene menziesii Menzies' silene Caryophyllaceae 1108 Silene noctiflora* Night-flowering catchfly Caryophyllaceae 1 1685 Silene oregana Oregon silene Caryophyllaceae 1686 Silene parryi Parry's silene Caryophyllaceae 1687 Silene scouleri Sleepy catchfly Caryophyllaceae 540 Silene sp. Catchfly Caryophyllaceae 373 Sisymbrium altissimum* Jim Hill mustard Brassicaceae 1 529 Sisyrinchium angustifolium Blue-eyed grass Iridaceae 700 Sitanion hystrix Squirreltail Poaceae 1690 Sitanion jubatum Big squirreltail Poaceae 1691 Sium suave Water-parsnip Apiaceae 375 Smilacina racemosa False Solomon's seal Liliaceae 376 Smilacina stellata Star-flowered Solomon's seaLiliaceae 377 Solanum dulcamara* Bittersweet nightshade Solanaceae 1 379 Solanum saccaroides* Hairy nightshade Solanaceae 1 1695 Solanum triflorum Cut-leaf nightshade Solanaceae 380 Solidago canadensis Meadow goldenrod Asteraceae 1697 Solidago missouriensis Missouri goldenrod Asteraceae 1699 Solidago occidentalis Western goldenrod Asteraceae 1700 Sorbus scopulina Cascade mountain-ash Rosaceae 385 Sparganium minimum Small bur-reed Sparganiaceae 1109 Spartina gracilus Alkali cordgrass Poaceae 390 Spergularia rubra* Red sandspurry Caryophyllaceae 1 1113 Sphenopholis obtusata Wedgegrass Poaceae 1114 Spiraea betulifolia Birch-leafed spirea Rosaceae 391 Spiraea douglasii Hardhack Rosaceae 660 Spiraea pyramidata Pyramid spiraea Rosaceae 392 Spiranthes romanzoffiana Hooded ladies-tresses Orchidaceae 395 Stachys palustris Swamp hedge-nettle Lamiaceae 1708 Stellaria borealis Northern starwort Caryophyllaceae 396 Stellaria crispa Crisped starwort Caryophyllaceae 399 Stellaria longifolia Long-leaved starwort Caryophyllaceae 400 Stellaria longipes Long-stalked starwort Caryophyllaceae 401 Stellaria media* Common chickweed Caryophyllaceae 1 1118 Stephanomeria tenuifolia Bush wirelettuce Asteraceae 1119 Stipa comata Rip-gut Poaceae 1711 Stipa lemmonii Lemmon's needlegrass Poaceae 1120 Stipa occidentalis Western needlegrass Poaceae 791 Stipa thurberiana Thurber's needlegrass Poaceae 402 Streptopus amplexifolius Clasping-leaved twisted-stalkLiliaceae 404 Symphoricarpos albus Common snowberry Caprifoliaceae 1123 Symphoricarpos oreophilus Mountain snowberry Caprifoliaceae 407 Tanacetum vulgare* Common tansy Asteraceae 1 408 Taraxacum officinale* Dandelion Asteraceae 1 409 Taxus brevifolia Western yew Taxaceae 1126 Tetradymia canescens Grey horse-brush Asteraceae 1721 Teucrium canadense Western germander Lamiaceae 1722 Thalictrum fendleri Fendler's meadowrue Ranunculaceae 572 Thlaspi arvense* Fanweed Brassicaceae 1 413 Tiarella trifoliata Foamflower Saxifragaceae 415 Tragopogon dubius* Oysterplant Asteraceae 1 1727 Trautvetteria caroliniensis False bugbane Ranunculaceae 1130 Trifolium cyathiferum Cup clover Fabaceae 420 Trifolium hybridum* Alsike clover Fabaceae 1 1131 Trifolium microcephalum Woolly clover Fabaceae 421 Trifolium pratense* Red clover Fabaceae 1 423 Trifolium repens* White clover Fabaceae 1 723 Trifolium sp. Clover sp. Fabaceae 426 Triglochin maritimum Seaside arrowgrass Juncaginaceae 1729 Triodanis perfoliata Venus' looking-glass Campanulaceae 428 Trisetum canescens Tall trisetum Poaceae 431 Typha latifolia Common cattail Typhaceae 433 Urtica dioica Stinging nettle Urticaceae 435 Utricularia vulgaris Common bladderwort Lentibulariaceae 1733 Vaccaria segetalis* Cowcockle Caryophyllaceae 1 565 Vaccinium caespitosum Dwarf bilberry Ericaceae 1735 Vaccinium membranaceum Mountain huckleberry Ericaceae 1737 Vaccinium myrtillus Low bilberry Ericaceae 717 Valeriana edulis Tabacco-root Valerianaceae 1741 Valeriana sitchensis Sitka valerian Valerianaceae 1742 Veratrum californicum California false hellebore Liliaceae 438 Verbascum blattaria* Moth mullein Scrophulariaceae 1 439 Verbascum thapsus* Common mullein Scrophulariaceae 1 534 Verbena bracteata Bracted vervain Verbenaceae 440 Veronica americana American brooklime Scrophulariaceae 726 Veronica peregrins Purseline's speedwell Scrophulariaceae 443 Veronica scuttelata Marsh speedwell Scrophulariaceae 444 Veronica serpyllifolia Thyme-leaf speedwell Scrophulariaceae 715 Vicia americana American vetch Fabaceae 445 Vicia cracca* Cow vetch Fabaceae 1 566 Viola adunca Early blue violet Violaceae 719 Viola glabella Stream violet Violaceae 1750 Viola macloskeyi Small white violet Violaceae 1134 Viola nephrophylla Northern bog violet Violaceae 1135 Viola nuttallii Yellow prairie violet Violaceae 1751 Viola orbiculata Round-leaved violet Violaceae 1752 Viola palustris Marsh violet Violaceae 1755 Viola sororia* Sand violet Violaceae 1 644 Woodsia oregana Oregon woodsia Polypodiaceae 1137 Woodsia scopulina Rocky Mtn. woodsia Polypodiaceae 638 Wyethia amplexicaulis Northern mule's ears Asteraceae 1138 Xanthium strumarium* Cocklebur Asteraceae 1 1140 Zigadenus paniculatus Panicled death-camas Liliaceae 624 Zigadenus venenosus Meadow death camas Liliaceae 1757 Zizia aptera Heart-leaved Alexanders Apiaceae