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List of Plants Tracked by the Washington Natural Heritage Program |
| February 2008 |
| This list is sorted by scientific name. You may also view it sorted by family. |
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This is a list of the plant taxa that are tracked by the Washington Natural Heritage Program in order by genus and species. It includes the scientific name, a common name, family name, global rank, state rank, state status, and federal status of each taxon. Clicking on a scientific name that is underlined will take you to the field guide page (pdf format) for that taxon.
A key to rank and status fields appears below. |
Scientific Name |
Common Name |
Family Name |
Global Rank |
State Rank |
State Status |
Federal Status |
| Abronia umbellata var. breviflora | Pink Sand-verbena | Nyctaginaceae | G4G5T2 | S1 | E | SC |
| Agoseris elata | Tall Agoseris | Asteraceae | G4 | S3 | S | |
| Agoseris lackschewitzii | Pink Agoseris | Asteraceae | G4 | SU | R2 | |
| Agrostis borealis | Northern Bentgrass | Poaceae | G5 | S1 | S | |
| Allium bisceptrum var. bisceptrum | Twincrest Onion | Liliaceae | G4G5T3T5 | S1 | R1 | |
| Allium campanulatum | Sierra Onion | Liliaceae | G4 | S1 | T | |
| Allium constrictum | Constricted Douglas' Onion | Liliaceae | G2G3 | S2S3 | S | |
| Allium dictuon | Blue Mountain Onion | Liliaceae | G2 | S2 | T | SC |
| Ammannia robusta | Grand Redstem | Lythraceae | G5 | S1 | T | |
| Anemone nuttalliana | Pasqueflower | Ranunculaceae | G4 | S1 | T | |
| Antennaria corymbosa | Meadow Pussy-toes | Asteraceae | G5 | S1 | T | |
| Antennaria parvifolia | Nuttall's Pussy-toes | Asteraceae | G5 | S2 | S | |
| Arabis crucisetosa | Cross-haired Rockcress | Brassicaceae | G4G5 | S1 | T | |
| Arabis furcata var. olympica | Olympic Nuttall's Rockcress | Brassicaceae | G4T2 | S2 | R2 | |
| Arenaria paludicola | Swamp Sandwort | Caryophyllaceae | G1 | SX | X | LE |
| Artemisia borealis var. wormskioldii | Northern Wormwood | Asteraceae | G5T1 | S1 | E | C |
| Asclepias cryptoceras ssp. davisii | Davis' Milkweed | Asclepiadaceae | G4TNR | S1 | T | |
| Astragalus arrectus | Palouse Milk-vetch | Fabaceae | G2G4 | S2 | T | |
| Astragalus arthurii | Arthur's Milk-vetch | Fabaceae | G5 | S2 | S | |
| Astragalus asotinensis | Asotin Milk-vetch | Fabaceae | G2 | S2 | T | |
| Astragalus australis var. olympicus | Cotton's Milk-vetch | Fabaceae | G5T2 | S2 | T | SC |
| Astragalus columbianus | Columbia Milk-vetch | Fabaceae | G3 | S3 | S | SC |
| Astragalus cusickii var. cusickii | Cusick's Milk-vetch | Fabaceae | G5T4 | S1? | S | |
| Astragalus diaphanus | Transparent Milk-vetch | Fabaceae | G3G4 | SX | X | |
| Astragalus geyeri | Geyer's Milk-vetch | Fabaceae | G4 | S1 | T | |
| Astragalus kentrophyta var. douglasii | Thistle Milk-vetch | Fabaceae | G5TX | SX | X | SC |
| Astragalus microcystis | Least Bladdery Milk-vetch | Fabaceae | G5 | S2 | S | |
| Astragalus misellus var. pauper | Pauper Milk-vetch | Fabaceae | G4T3 | S3 | S | |
| Astragalus multiflorus | Loose-flower Milk-vetch | Fabaceae | G5 | S1 | T | |
| Astragalus pulsiferae var. suksdorfii | Ames' Milk-vetch | Fabaceae | G4T2 | S1 | E | SC |
| Astragalus riparius | Piper's Milk-vetch | Fabaceae | G1G2 | S1S2 | E | |
| Astragalus sinuatus | Whited's Milk-vetch | Fabaceae | G1 | S1 | E | SC |
| Baccharis pilularis | Coyotebush | Asteraceae | G5 | S1 | T | |
| Balsamorhiza deltoidea | Puget Balsamroot | Asteraceae | G5 | S2? | R2 | |
| Bartramiopsis lescurii | A Moss | Polytrichaceae | G3G5 | S1 | E | |
| Bergia texana | Texas Bergia | Elatinaceae | G5 | SNR | R1 | |
| Bolandra oregana | Bolandra | Saxifragaceae | G3 | S2 | S | |
| Boschniakia hookeri | Vancouver Ground-cone | Orobanchaceae | G5 | S3? | R1 | |
| Botrychium ascendens | Triangular-lobed Moonwort | Ophioglossaceae | G2G3 | S2 | S | SC |
| Botrychium crenulatum | Crenulate Moonwort | Ophioglossaceae | G3 | S3 | S | SC |
| Botrychium hesperium | Western Moonwort | Ophioglossaceae | G3G4 | S1 | T | |
| Botrychium lineare | Skinny Moonwort | Ophioglossaceae | G1 | S1 | T | SC |
| Botrychium paradoxum | Two-spiked Moonwort | Ophioglossaceae | G2 | S2 | T | SC |
| Botrychium pedunculosum | Stalked Moonwort | Ophioglossaceae | G2G3 | S2 | S | SC |
| Brotherella roellii | A Moss | Sematophyllaceae | G3 | SH | T | |
| Calamagrostis canadensis var. imberbis | Blue Joint Reedgrass | Poaceae | G5TNR | S2? | R2 | |
| Calochortus longebarbatus var. longebarbatus | Long-bearded Sego Lily | Liliaceae | G4T4 | S2S3 | S | SC |
| Calochortus macrocarpus var. maculosus | Sagebrush Mariposa-lily | Liliaceae | G5T2 | S1 | E | |
| Calochortus nitidus | Broad-fruit Mariposa | Liliaceae | G3 | S1 | E | SC |
| Calyptridium roseum | Rosy Pussypaws | Portulacaceae | G5 | S1 | T | |
| Camissonia minor | Small-flower Evening-primrose | Onagraceae | G4 | S2 | S | |
| Camissonia pygmaea | Dwarf Evening-primrose | Onagraceae | G3 | S3 | S | |
| Camissonia scapoidea | Naked-stemmed Evening-primrose | Onagraceae | G5 | S1 | S | |
| Campanula lasiocarpa | Alaska Harebell | Campanulaceae | G5 | S2 | S | |
| Carex anthoxanthea | Yellow-flowered Sedge | Cyperaceae | G5 | S1 | S | |
| Carex atrosquama | Blackened Sedge | Cyperaceae | G4? | S1 | R1 | |
| Carex capillaris | Hair-like Sedge | Cyperaceae | G5 | S1 | S | |
| Carex capitata | Capitate Sedge | Cyperaceae | G5 | SU | R1 | |
| Carex chordorrhiza | Cordroot Sedge | Cyperaceae | G5 | S1 | S | |
| Carex circinata | Coiled Sedge | Cyperaceae | G4 | S1 | S | |
| Carex comosa | Bristly Sedge | Cyperaceae | G5 | S2 | S | |
| Carex constanceana | Contance's sedge | Cyperaceae | GNR | SH | R1 | |
| Carex densa | Dense Sedge | Cyperaceae | G5 | S1 | T | |
| Carex dioica | Yellow Bog Sedge | Cyperaceae | G5 | S1 | S | |
| Carex epapillosa | Blackened Sedge | Cyperaceae | G5TNR | S2 | S | |
| Carex flava | Yellow Sedge | Cyperaceae | G5 | S3 | S | |
| Carex macrochaeta | Large-awn Sedge | Cyperaceae | G5 | S1 | T | |
| Carex magellanica ssp. irrigua | Poor Sedge | Cyperaceae | G5T5 | S2S3 | S | |
| Carex media | Intermediate Sedge | Cyperaceae | G5T5? | S2 | S | |
| Carex obtusata | Blunt Sedge | Cyperaceae | G5 | S2 | S | |
| Carex pallescens | Pale Sedge | Cyperaceae | G5 | SNR | R1 | |
| Carex pauciflora | Few-flowered Sedge | Cyperaceae | G5 | S2 | S | |
| Carex pluriflora | Several-flowered Sedge | Cyperaceae | G4 | S1S2 | S | |
| Carex praeceptorum | Teacher's Sedge | Cyperaceae | G4G5 | SNR | R1 | |
| Carex proposita | Smoky Mountain Sedge | Cyperaceae | G4 | S2 | T | |
| Carex rostrata | Beaked Sedge | Cyperaceae | G5 | S1 | S | |
| Carex scirpoidea var. scirpoidea | Canadian Single-spike Sedge | Cyperaceae | G5T5 | S2 | S | |
| Carex stylosa | Long-styled Sedge | Cyperaceae | G5 | S1S2 | S | |
| Carex sychnocephala | Many-headed Sedge | Cyperaceae | G4 | S2 | S | |
| Carex tahoensis | Lake Tahoe Sedge | Cyperaceae | G5 | SU | R1 | |
| Carex tenera var. tenera | Quill Sedge | Cyperaceae | G5 | S1 | T | |
| Carex tenuiflora | Sparse-leaved Sedge | Cyperaceae | G5 | S1 | T | |
| Carex vallicola | Valley Sedge | Cyperaceae | G5 | S2 | S | |
| Cassiope lycopodioides | Clubmoss Cassiope | Ericaceae | G4 | S1 | T | |
| Castilleja cryptantha | Obscure Indian-paintbrush | Scrophulariaceae | G2G3 | S2S3 | S | SC |
| Castilleja levisecta | Golden Paintbrush | Scrophulariaceae | G1 | S1 | E | LT |
| Castilleja sp. 1 | Victoria's Paintbrush | Scrophulariaceae | G1 | S1 | E | |
| Centaurium muehlenbergii | Monterey Centaury | Gentianaceae | G5? | SH | R1 | |
| Centunculus minimus | Chaffweed | Primulaceae | G5 | SNR | R1 | |
| Chaenactis thompsonii | Thompson's Chaenactis | Asteraceae | G2G3 | S2S3 | S | |
| Cheilanthes feei | Fee's Lip-fern | Pteridaceae | G5 | S1 | T | |
| Chrysolepis chrysophylla | Golden Chinquapin | Fagaceae | G5 | S2 | S | |
| Chrysosplenium tetrandrum | Northern Golden-carpet | Saxifragaceae | G5 | S2 | S | |
| Chrysothamnus viscidiflorus ssp. axillaris | Sticky-leaf Rabbitbrush | Asteraceae | G5T3T5 | SU | R1 | |
| Cicuta bulbifera | Bulb-bearing Water-hemlock | Apiaceae | G5 | S2 | S | |
| Cimicifuga elata var. elata | Tall Bugbane | Ranunculaceae | G3 | S3 | S | SC |
| Claytonia megarhiza var. nivalis | Fell-fields Claytonia | Portulacaceae | G4G5T3 | S3 | R2 | |
| Claytonia multiscapa ssp. pacifica | Pacific Lanceleaved Springbeauty | Portulacaceae | G5T3 | S1 | T | |
| Cochlearia officinalis | Scurvygrass | Brassicaceae | G5 | S1S2 | S | |
| Coeloglossum viride | Long-bract Frog Orchid | Orchidaceae | G5 | S1 | T | |
| Collinsia sparsiflora var. bruceae | Few-flowered Collinsia | Scrophulariaceae | G4T4 | S1S2 | S | |
| Collomia macrocalyx | Bristle-flowered Collomia | Polemoniaceae | G3G4 | S1 | S | |
| Coptis aspleniifolia | Spleenwort-leaved Goldthread | Ranunculaceae | G5 | S2 | S | |
| Coptis trifolia | Goldthread | Ranunculaceae | G5 | S1 | T | |
| Corispermum pallidum | Pale Bugseed | Chenopodiaceae | GH | SH | X | |
| Corydalis aquae-gelidae | Clackamas Corydalis | Fumariaceae | G3 | S2S3 | S | SC |
| Crassula connata | Erect Pygmy-weed | Crassulaceae | G5 | S1S2 | T | |
| Crataegus phippsii | Phipps' Hawthorn | Rosaceae | G1G3 | S1 | R1 | |
| Crepis bakeri ssp. idahoensis | Idaho Hawksbeard | Asteraceae | G4T2 | S1 | R1 | |
| Cryptantha gracilis | Narrow-stem Cryptantha | Boraginaceae | G5 | S2 | S | |
| Cryptantha leucophaea | Gray Cryptantha | Boraginaceae | G2G3 | S2S3 | S | SC |
| Cryptantha rostellata | Beaked Cryptantha | Boraginaceae | G4 | S2 | T | |
| Cryptantha scoparia | Miner's Candle | Boraginaceae | G4? | S1 | S | |
| Cryptantha spiculifera | Snake River Cryptantha | Boraginaceae | G4? | S2? | S | |
| Cryptogramma stelleri | Steller's Rockbrake | Pteridaceae | G5 | S1S2 | S | |
| Cuscuta denticulata | Desert Dodder | Cuscutaceae | G4G5 | S1 | T | |
| Cusickiella douglasii | Douglas' Draba | Brassicaceae | G4G5 | S1 | T | |
| Cypripedium fasciculatum | Clustered Lady's-slipper | Orchidaceae | G4 | S3 | S | SC |
| Cypripedium parviflorum | Yellow Lady's-slipper | Orchidaceae | G5 | S2 | T | |
| Damasonium californicum | Fringed Waterplantain | Alismataceae | G4 | S1 | T | |
| Delphinium leucophaeum | Pale Larkspur | Ranunculaceae | G2Q | S1 | E | SC |
| Delphinium viridescens | Wenatchee Larkspur | Ranunculaceae | G2 | S2 | T | SC |
| Dodecatheon austrofrigidum | Frigid Shootingstar | Primulaceae | G2 | S1 | E | SC |
| Draba aurea | Golden Draba | Brassicaceae | G5 | S1S2 | S | |
| Draba cana | Lance-leaved Draba | Brassicaceae | G5 | S1S2 | S | |
| Draba lonchocarpa var. vestita | Lance-fruited Draba | Brassicaceae | G5T3 | SNR | R1 | |
| Draba longipes | Long-stalked Draba | Brassicaceae | G4 | S1 | T | |
| Dryas drummondii | Yellow Mountain-avens | Rosaceae | G5 | S2 | S | |
| Dryopteris carthusiana | Toothed Wood Fern | Dryopteridaceae | G5 | S2? | R1 | |
| Dryopteris cristata | Crested Shield-fern | Dryopteridaceae | G5 | S2 | S | |
| Eatonella nivea | White Eatonella | Asteraceae | G4G5 | S1 | T | |
| Eleocharis atropurpurea | Purple Spike-rush | Cyperaceae | G4G5 | SX | X | |
| Eleocharis rostellata | Beaked Spike-rush | Cyperaceae | G5 | S2 | S | |
| Encalypta brevicolla var. crumiana | A Moss | Encalyptaceae | G4T1 | S1 | E | |
| Eremogone franklinii var. thompsonii | Thompson's Sandwort | Caryophyllaceae | G4THQ | SU | R1 | |
| Erigeron aliceae | Alice's Fleabane | Asteraceae | G4 | S2 | S | |
| Erigeron basalticus | Basalt Daisy | Asteraceae | G2 | S2 | T | SC |
| Erigeron elatus | Tall Bitter Fleabane | Asteraceae | G4? | S1 | E | |
| Erigeron engelmannii var. davisii | Davis' Fleabane | Asteraceae | G5T3 | SU | R1 | |
| Erigeron howellii | Howell's Daisy | Asteraceae | G2 | S2 | T | SC |
| Erigeron oreganus | Gorge Daisy | Asteraceae | G3 | S2 | T | SC |
| Erigeron peregrinus var. thompsonii | Thompson's Wandering Daisy | Asteraceae | G5T2 | S2 | S | |
| Erigeron piperianus | Piper's Daisy | Asteraceae | G3 | S3 | S | |
| Erigeron salishii | Salish Fleabane | Asteraceae | G2G3 | S2 | S | |
| Eriogonum codium | Umtanum Desert Buckwheat | Polygonaceae | G1 | S1 | E | C |
| Eriogonum maculatum | Spotted Buckwheat | Polygonaceae | G5 | SX | X | |
| Eriophorum viridicarinatum | Green Keeled Cotton-grass | Cyperaceae | G5 | S2 | S | |
| Eritrichium nanum var. elongatum | Pale Alpine-forget-me-not | Boraginaceae | G5T4 | S1 | S | |
| Eryngium articulatum | Jointed Coyote-thistle | Apiaceae | G5 | SH | X | |
| Eryngium petiolatum | Oregon Coyote-thistle | Apiaceae | G4 | S1 | T | |
| Erythronium quinaultense | Quinault Fawnlily | Liliaceae | G2 | S1S2 | T | |
| Erythronium revolutum | Pink Fawn-lily | Liliaceae | G4 | S3 | S | |
| Euonymus occidentalis | Western Wahoo | Celastraceae | G5 | S1 | T | |
| Eupatorium maculatum var. bruneri | Spotted Joe-pye Weed | Asteraceae | G5T4T5Q | SH | X | |
| Eurybia merita | Arctic Aster | Asteraceae | G5T5 | S1S2 | S | |
| Filipendula occidentalis | Queen-of-the-forest | Rosaceae | G2G3 | S2S3 | T | SC |
| Fritillaria camschatcensis | Black Lily | Liliaceae | G5 | S2 | S | |
| Gaultheria hispidula | Creeping Snowberry | Ericaceae | G5 | S2 | S | |
| Gentiana douglasiana | Swamp Gentian | Gentianaceae | G4 | S2 | S | |
| Gentiana glauca | Glaucous Gentian | Gentianaceae | G4G5 | S2 | S | |
| Gentianella tenella | Slender Gentian | Gentianaceae | G4G5 | S1 | S | |
| Geranium oreganum | Oregon Crane's-bill | Geraniaceae | G4G5 | SNR | R1 | |
| Geum rivale | Water Avens | Rosaceae | G5 | S2S3 | S | |
| Geum rossii var. depressum | Ross' Avens | Rosaceae | G5T1 | S1 | E | |
| Gilia leptomeria | Great Basin Gilia | Polemoniaceae | G5 | S1 | T | |
| Githopsis specularioides | Common Blue-cup | Campanulaceae | G5 | S3 | S | |
| Hackelia cinerea | Gray Stickseed | Boraginaceae | G4? | S1 | S | |
| Hackelia diffusa var. diffusa | Diffuse Stickseed | Boraginaceae | G4T3 | S2 | T | |
| Hackelia hispida var. disjuncta | Sagebrush Stickseed | Boraginaceae | G4T2T3 | S2S3 | S | |
| Hackelia hispida var. hispida | Rough Stickseed | Boraginaceae | G4T4 | S1 | T | |
| Hackelia sp. 2 | Taylor's Stickseed | Boraginaceae | G2 | S2 | T | |
| Hackelia venusta | Showy Stickseed | Boraginaceae | G1 | S1 | E | LE |
| Halimolobos perplexa var. perplexa | Puzzling rockcress | Brassicaceae | G4T3 | S1 | T | |
| Hedysarum occidentale | Western Hedysarum | Fabaceae | G5 | S1 | S | |
| Heterotheca oregona | Oregon Goldenaster | Asteraceae | G4 | S1 | T | |
| Heuchera grossulariifolia var. tenuifolia | Gooseberry-leaved Alumroot | Saxifragaceae | G4T3T4 | S3 | S | |
| Hierochloe odorata | Common Northern Sweet Grass | Poaceae | G5 | SNR | R1 | |
| Howellia aquatilis | Howellia | Campanulaceae | G3 | S2S3 | T | LT |
| Hypericum majus | Canadian St. John's-wort | Clusiaceae | G5 | S2 | S | |
| Iliamna longisepala | Longsepal Globemallow | Malvaceae | G3 | S3 | S | |
| Impatiens aurella | Orange Balsam | Balsaminaceae | G4? | S3? | R1 | |
| Impatiens noli-tangere | Western Jewel-weed | Balsaminaceae | G4G5 | SU | R2 | |
| Isoetes minima | Midget quillwort | Isoetaceae | G4G5T1T2 | S1 | R1 | |
| Isoetes nuttallii | Nuttall's Quillwort | Isoetaceae | G4? | S1 | S | |
| Iwatsukiella leucotricha | Iwatsukiella Moss | Pterigynandraceae | G4G5 | S1 | E | |
| Juncus hemiendytus var. hemiendytus | Dwarf Rush | Juncaceae | G5T5 | S1 | T | |
| Juncus howellii | Howell's Rush | Juncaceae | G4 | S1 | T | |
| Juncus kelloggii | Kellogg's Rush | Juncaceae | G3? | S1 | E | |
| Juncus tiehmii | Tiehm's Rush | Juncaceae | G4 | S1 | T | |
| Juncus uncialis | Inch-high Rush | Juncaceae | G3G4 | S2 | S | |
| Lasthenia glaberrima | Smooth Goldfields | Asteraceae | G5 | S1 | E | |
| Lathrocasis tenerrima | Delicate Gilia | Polemoniaceae | G5 | SU | R1 | |
| Lathyrus holochlorus | Thin-leaved Peavine | Fabaceae | G2 | S1 | E | SC |
| Lathyrus torreyi | Torrey's Peavine | Fabaceae | G5 | S1 | T | SC |
| Lathyrus vestitus ssp. bolanderi | Pacific Pea | Fabaceae | G5TNR | S1 | E | |
| Lepidium oxycarpum | Sharpfruited Peppergrass | Brassicaceae | G4 | S1 | T | |
| Leptosiphon minimus | True Babystars | Polemoniaceae | G5TNR | SU | R1 | |
| Linanthus bolanderi | Baker's Linanthus | Polemoniaceae | G4G5 | S2 | S | |
| Linaria canadensis var. texana | Texas toadflax | Scrophulariaceae | G4G5 | S1 | R1 | |
| Liparis loeselii | Twayblade | Orchidaceae | G5 | S1 | E | |
| Lipocarpha aristulata | Awned Halfchaff Sedge | Cyperaceae | G5? | S1 | T | |
| Lobelia dortmanna | Water Lobelia | Campanulaceae | G4G5 | S2 | T | |
| Lobelia kalmii | Kalm's Lobelia | Campanulaceae | G5 | S1 | E | |
| Loeflingia squarrosa var. squarrosa | Loeflingia | Caryophyllaceae | G5T4? | S1 | T | |
| Loiseleuria procumbens | Alpine Azalea | Ericaceae | G5 | S1 | T | |
| Lomatium bradshawii | Bradshaw's Lomatium | Apiaceae | G2 | S1 | E | LE |
| Lomatium laevigatum | Smooth Desert-parsley | Apiaceae | G3 | S2 | T | |
| Lomatium rollinsii | Rollins' Desert-parsley | Apiaceae | G3 | S2 | T | |
| Lomatium sandbergii | Sandberg's Desert-parsley | Apiaceae | G4 | S1 | T | |
| Lomatium serpentinum | Snake Canyon Desert-parsley | Apiaceae | G4 | S2 | S | |
| Lomatium suksdorfii | Suksdorf's Desert-parsley | Apiaceae | G3 | S3 | S | SC |
| Lomatium tuberosum | Hoover's Desert-parsley | Apiaceae | G2G3 | S2S3 | S | SC |
| Lupinus cusickii | Prairie Lupine | Fabaceae | G1 | SU | R2 | SC |
| Lupinus sabinianus | Sabin's Lupine | Fabaceae | G4 | S1 | E | |
| Lupinus sericeus var. asotinensis | Asotin Silky Lupine | Fabaceae | G5T3 | S3 | R1 | |
| Lupinus sulphureus ssp. kincaidii | Kincaid's Sulfur Lupine | Fabaceae | G5T2 | S1 | E | LT |
| Luzula arcuata | Curved Woodrush | Juncaceae | G5 | S1 | S | |
| Lycopodiella inundata | Bog Clubmoss | Lycopodiaceae | G5 | S2 | S | |
| Lycopodium dendroideum | Treelike Clubmoss | Lycopodiaceae | G5 | S2 | S | |
| Meconella oregana | White Meconella | Papaveraceae | G2G3 | S1 | T | SC |
| Microseris bigelovii | Coast Microseris | Asteraceae | G4 | SX | X | |
| Microseris borealis | Northern Microseris | Asteraceae | G4? | S2 | S | |
| Mimulus clivicola | Bank Monkey-flower | Scrophulariaceae | G4 | SNR | R1 | |
| Mimulus cusickii | Cusick Monkeyflower | Scrophulariaceae | G4G5 | S1 | T | |
| Mimulus jungermannioides | Liverwort Monkey-flower | Scrophulariaceae | G2 | SH | X | SC |
| Mimulus patulus | Stalk-leaved Monkeyflower | Scrophulariaceae | G3Q | S1 | T | |
| Mimulus pulsiferae | Pulsifer's Monkey-flower | Scrophulariaceae | G4? | S2 | S | |
| Mimulus suksdorfii | Suksdorf's Monkey-flower | Scrophulariaceae | G4 | S2 | S | |
| Mimulus washingtonensis | Washington Monkey-flower | Scrophulariaceae | G4 | SX | X | |
| Minuartia nuttallii ssp. fragilis | Nuttall's Sandwort | Caryophyllaceae | G5T4 | S1 | T | |
| Minuartia pusilla var. pusilla | Annual Sandwort | Caryophyllaceae | G5T3T5 | SNR | R1 | |
| Monolepis pusilla | Red Poverty-weed | Chenopodiaceae | G5 | S1 | T | |
| Monolepis spathulata | Prostrate Poverty-weed | Chenopodiaceae | G5 | SU | R1 | |
| Montia diffusa | Branching Montia | Portulacaceae | G4 | S2S3 | S | |
| Muhlenbergia glomerata | Marsh Muhly | Poaceae | G5 | S1S2 | S | |
| Myosurus clavicaulis | Mousetail | Ranunculaceae | G3? | S2 | S | |
| Myriophyllum ussuriense | Ussurian Water-milfoil | Haloragaceae | G3 | SNR | R1 | |
| Navarretia tagetina | Marigold Navarretia | Polemoniaceae | G5 | S1 | T | |
| Nicotiana attenuata | Coyote Tobacco | Solanaceae | G4 | S2 | S | |
| Nymphaea tetragona | Pygmy Water-lily | Nymphaeaceae | G5 | SH | X | |
| Oenothera caespitosa ssp. caespitosa | Cespitose Evening-primrose | Onagraceae | G5T5 | S2 | S | |
| Oenothera caespitosa ssp. marginata | Tufted Evening-primrose | Onagraceae | G5T3T5 | S1 | T | |
| Oenothera flava | Long-tubed Evening-primrose | Onagraceae | G5 | SH | X | |
| Ophioglossum pusillum | Adder's-tongue | Ophioglossaceae | G5 | S1S2 | T | |
| Orobanche californica ssp. grayana | California Broomrape | Orobanchaceae | G4T3T4 | SX | X | |
| Orthocarpus bracteosus | Rosy Owl-clover | Scrophulariaceae | G3? | S1 | E | |
| Orthotrichum praemorsum | A Moss | Orthotrichaceae | G2 | S1 | E | SC |
| Oxalis suksdorfii | Western Yellow Oxalis | Oxalidaceae | G4 | S1 | T | |
| Oxytropis borealis var. viscida | Sticky Crazyweed | Fabaceae | G5T4? | S1S2 | S | |
| Oxytropis campestris var. columbiana | Columbia Crazyweed | Fabaceae | G5T1 | S1 | E | |
| Oxytropis campestris var. gracilis | Slender Crazyweed | Fabaceae | G5?T5? | S2 | S | |
| Oxytropis campestris var. wanapum | Wanapum Crazyweed | Fabaceae | G5T1 | S1 | E | SC |
| Packera porteri | Porter's Butterweed | Asteraceae | G4 | S1S2 | R1 | |
| Parnassia fimbriata var. hoodiana | Fringed Grass-of-parnassus | Saxifragaceae | G5T3 | S1 | T | |
| Parnassia kotzebuei | Kotzebue's Grass-of-parnassus | Saxifragaceae | G5 | S1 | S | |
| Parnassia palustris var. neogaea | Northern Grass-of-parnassus | Saxifragaceae | G4T4 | S2 | S | |
| Pedicularis rainierensis | Mt. Rainier Lousewort | Scrophulariaceae | G2G3 | S2S3 | S | |
| Pediocactus nigrispinus | Snowball Cactus | Cactaceae | GNR | S2 | R1 | |
| Pellaea brachyptera | Sierra Cliff-brake | Pteridaceae | G4G5 | S2 | S | |
| Pellaea breweri | Brewer's Cliff-brake | Pteridaceae | G5 | S2 | S | |
| Penstemon barrettiae | Barrett's Beardtongue | Scrophulariaceae | G2 | S2 | T | SC |
| Penstemon deustus var. variabilis | Hot-rock Penstemon | Scrophulariaceae | G5T1T2 | S1S2 | T | |
| Penstemon eriantherus var. whitedii | Fuzzytongue Penstemon | Scrophulariaceae | G4T2 | S2 | S | |
| Penstemon wilcoxii | Wilcox's Penstemon | Scrophulariaceae | G4 | S1 | S | |
| Perideridia oregana | Oregon Yampah | Apiaceae | G4G5 | SNR | R1 | |
| Petrophyton caespitosum var. caespitosum | Rocky Mountain Rockmat | Rosaceae | G5T3T5 | S1 | T | |
| Petrophyton cinerascens | Chelan Rockmat | Rosaceae | G1 | S1 | E | SC |
| Phacelia lenta | Sticky Phacelia | Hydrophyllaceae | G2 | S2 | T | SC |
| Phacelia minutissima | Least Phacelia | Hydrophyllaceae | G3 | S1 | E | SC |
| Phacelia tetramera | Dwarf Phacelia | Hydrophyllaceae | G4 | S1 | S | |
| Physaria didymocarpa var. didymocarpa | Common Twinpod | Brassicaceae | G5T4 | S1 | S | |
| Physaria tuplashensis | White Bluffs Bladderpod | Brassicaceae | G2Q | S2 | T | C |
| Pilularia americana | American Pillwort | Marsileaceae | G5 | S1S2 | T | |
| Pityopus californica | Pine-foot | Monotropaceae | G4G5 | S1 | T | |
| Plantago macrocarpa | Alaska Plantain | Plantaginaceae | G4 | S2 | S | |
| Platanthera chorisiana | Choris' Bog-orchid | Orchidaceae | G3G4 | S2 | T | |
| Platanthera obtusata | Small Northern Bog-orchid | Orchidaceae | G5 | S2 | S | |
| Platanthera sparsiflora | Canyon Bog-orchid | Orchidaceae | G4G5 | S1 | T | |
| Poa laxiflora | Loose-flowered Bluegrass | Poaceae | G3G4 | S2S3 | S | |
| Poa nervosa | Wheeler's Bluegrass | Poaceae | G3? | S2 | S | |
| Poa unilateralis | Ocean-bluff Bluegrass | Poaceae | G3 | S2 | T | |
| Polemonium carneum | Great Polemonium | Polemoniaceae | G4 | S1S2 | T | |
| Polemonium pectinatum | Washington Polemonium | Polemoniaceae | G2 | S2 | T | SC |
| Polemonium viscosum | Skunk Polemonium | Polemoniaceae | G5 | S1S2 | S | |
| Polyctenium fremontii var. fremontii | Fremont's Combleaf | Brassicaceae | G4T4 | S1 | T | |
| Polygonum austiniae | Austin's Knotweed | Polygonaceae | G4 | S1 | T | |
| Polygonum parryi | Parry's Knotweed | Polygonaceae | G4 | S1? | T | |
| Polystichum californicum | California Sword-fern | Dryopteridaceae | G4 | S1S2 | T | |
| Potamogeton filiformis var. occidentalis | Western Fineleaf Pondweed | Potamogetonaceae | G5T5 | S1S2 | R1 | |
| Potamogeton foliosus ssp. fibrillosus | Leafy Pondweed | Potamogetonaceae | G5T2T4 | SNR | R1 | |
| Potamogeton obtusifolius | Blunt-leaved Pondweed | Potamogetonaceae | G5 | S2 | S | |
| Potentilla diversifolia var. perdissecta | Diverse-leaved Cinquefoil | Rosaceae | G5T4 | S1 | S | |
| Potentilla drummondii ssp. breweri | Brewer's Cinquefoil | Rosaceae | G5 | S1 | T | |
| Potentilla newberryi | Newberry Cinquefoil | Rosaceae | G3G4 | SH | X | |
| Potentilla nivea | Snow Cinquefoil | Rosaceae | G5 | S2 | S | |
| Potentilla quinquefolia | Five-leaved Cinquefoil | Rosaceae | G4 | S1 | T | |
| Puccinellia nutkaensis | Alaska Alkaligrass | Poaceae | G4? | S2 | S | |
| Pyrrocoma hirta var. sonchifolia | Sticky Goldenweed | Asteraceae | G4G5T3 | S1 | S | |
| Pyrrocoma liatriformis | Palouse Goldenweed | Asteraceae | G2 | S2 | T | SC |
| Ranunculus californicus | California Buttercup | Ranunculaceae | G5 | S1 | T | |
| Ranunculus cooleyae | Cooley's Buttercup | Ranunculaceae | G4 | S1S2 | S | |
| Ranunculus hebecarpus | Downy Butter-cup | Ranunculaceae | G5 | SNR | R1 | |
| Ranunculus populago | Mountain Buttercup | Ranunculaceae | G4 | S2 | S | |
| Ranunculus pygmaeus | Dwarf Buttercup | Ranunculaceae | G5 | SU | R1 | |
| Ranunculus reconditus | Obscure Buttercup | Ranunculaceae | G2 | S1 | E | SC |
| Ribes cereum var. colubrinum | Squaw Currant | Grossulariaceae | G5T3 | S1 | E | |
| Ribes oxyacanthoides ssp. irriguum | Idaho Gooseberry | Grossulariaceae | G5T3T4 | S2 | T | |
| Rorippa columbiae | Persistentsepal Yellowcress | Brassicaceae | G3 | S1S2 | E | SC |
| Rotala ramosior | Lowland Toothcup | Lythraceae | G5 | S1 | T | |
| Rubus acaulis | Nagoonberry | Rosaceae | G5 | S1 | T | |
| Rubus nigerrimus | Northwest Raspberry | Rosaceae | G1 | S1 | E | SC |
| Salix candida | Hoary Willow | Salicaceae | G5 | S1 | T | |
| Salix glauca | Glaucous Willow | Salicaceae | G5 | S1S2 | S | |
| Salix maccalliana | Maccall's Willow | Salicaceae | G5? | S1 | S | |
| Salix pseudomonticola | False Mountain Willow | Salicaceae | G4G5 | SU | R1 | |
| Salix sessilifolia | Soft-leaved Willow | Salicaceae | G4 | S2 | S | |
| Salix tweedyi | Tweedy's Willow | Salicaceae | G4 | S3 | S | |
| Salix vestita var. erecta | Rock Willow | Salicaceae | G5T3T4Q | SH | X | |
| Samolus parviflorus | Water-pimpernel | Primulaceae | G5 | S1 | S | |
| Sanguisorba menziesii | Menzies' Burnet | Rosaceae | G3G4 | S1 | T | |
| Sanicula arctopoides | Bear's-foot Sanicle | Apiaceae | G5 | S1 | E | SC |
| Sanicula marilandica | Black Snake-root | Apiaceae | G5 | S2 | S | |
| Saxifraga cernua | Nodding Saxifrage | Saxifragaceae | G4 | S1S2 | S | |
| Saxifraga rivularis | Pygmy Saxifrage | Saxifragaceae | G5? | S3 | S | |
| Saxifraga tischii | Tisch's Saxifrage | Saxifragaceae | G1? | S1? | R1 | |
| Saxifragopsis fragarioides | Strawberry Saxifrage | Saxifragaceae | G3? | S1 | T | |
| Schizachyrium scoparium var. scoparium | Little Bluestem | Poaceae | G5T5 | S1S2 | T | |
| Scirpus saximontanus | Rocky Mountain Bulrush | Cyperaceae | G5 | S1 | T | |
| Sclerolinon digynum | Northwestern Yellowflax | Linaceae | G5 | S1S2 | T | |
| Scouleria marginata | A Moss | Scouleriaceae | G3 | S2 | T | |
| Scribneria bolanderi | Scribner-grass | Poaceae | G3G4 | S1 | S | |
| Scutellaria angustifolia ssp. micrantha | Narrowleaf Skullcap | Lamiaceae | G5T3T5 | S2S3 | R1 | |
| Scutellaria antirrhinoides | Snap-dragon Skullcap | Lamiaceae | G5 | SH | X | |
| Sericocarpus oregonensis ssp. oregonensis | Oregon White-top Aster | Asteraceae | GNR | S1 | T | |
| Sericocarpus rigidus | White-top Aster | Asteraceae | G3 | S3 | S | SC |
| Sidalcea hirtipes | Hairy-stemmed Checker-mallow | Malvaceae | G2 | S1 | E | |
| Sidalcea malviflora ssp. virgata | Rose Checker-mallow | Malvaceae | G5TNR | S1 | E | SC |
| Sidalcea nelsoniana | Nelson's Checker-mallow | Malvaceae | G2 | S1 | E | LT |
| Sidalcea oregana var. calva | Wenatchee Mountain Checker-mallow | Malvaceae | G5T1 | S1 | E | LE |
| Silene douglasii var. monantha | Douglas' Silene | Caryophyllaceae | G4T3T4 | S3? | R2 | |
| Silene sargentii | Sargent's Catchfly | Caryophyllaceae | G4 | S1 | R1 | |
| Silene scouleri var. pacifica | Scouler's Catchfly | Caryophyllaceae | G5TNRQ | SU | R1 | |
| Silene seelyi | Seely's Silene | Caryophyllaceae | G2G3 | S2S3 | S | SC |
| Silene spaldingii | Spalding's Silene | Caryophyllaceae | G2 | S2 | T | LT |
| Sisyrinchium montanum | Strict Blue-eyed-grass | Iridaceae | G5 | S1 | T | |
| Sisyrinchium sarmentosum | Pale Blue-eyed Grass | Iridaceae | G1G2 | S1S2 | T | SC |
| Sisyrinchium septentrionale | Blue-eyed Grass | Iridaceae | G3G4 | S3 | S | |
| Solidago missouriensis var. tolmieana | Tolmie's Goldenrod | Asteraceae | G5T3? | S1S3 | R2 | |
| Sparganium fluctuans | Water Bur-reed | Sparganiaceae | G5 | S1 | T | |
| Spartina pectinata | Prairie Cordgrass | Poaceae | G5 | S2 | S | |
| Spiraea splendens | Subalpine Spiraea | Rosaceae | G5 | S2 | S | |
| Spiranthes diluvialis | Ute Ladies' Tresses | Orchidaceae | G2 | S1 | E | LT |
| Spiranthes porrifolia | Western Ladies-tresses | Orchidaceae | G4 | S2 | S | |
| Subularia aquatica var. americana | Water Awlwort | Brassicaceae | G5T5 | SNR | R1 | |
| Sullivantia oregana | Oregon Sullivantia | Saxifragaceae | G2 | S1 | E | SC |
| Swertia perennis | Swertia | Gentianaceae | G5 | S1? | R1 | |
| Symphyotrichum boreale | Rush Aster | Asteraceae | G5 | S1 | T | |
| Symphyotrichum hallii | Hall's Aster | Asteraceae | G4 | S1 | T | |
| Symphyotrichum jessicae | Jessica's Aster | Asteraceae | G2 | S1S2 | E | SC |
| Synthyris pinnatifida var. lanuginosa | Cut-leaf Synthyris | Scrophulariaceae | G4T2 | S2 | T | |
| Tauschia hooveri | Hoover's Tauschia | Apiaceae | G2 | S2 | T | SC |
| Tauschia tenuissima | Leiberg's Tauschia | Apiaceae | G3 | SX | X | |
| Texosporium sancti-jacobi | Woven-spored Lichen | Caliciaceae | G2 | S1? | T | SC |
| Thalictrum dasycarpum | Purple Meadowrue | Ranunculaceae | G5 | S2 | S | |
| Thelypodium howellii ssp. howellii | Howell's Thelypody | Brassicaceae | G2T2 | SNR | R1 | |
| Thelypodium sagittatum ssp. sagittatum | Arrow Thelypody | Brassicaceae | G4T4 | S1 | S | |
| Trichostema oblongum | Oblong Bluecurls | Lamiaceae | G5 | SNR | R1 | |
| Trifolium douglasii | Douglas' Clover | Fabaceae | G2 | S1 | E | |
| Trifolium plumosum var. plumosum | Plumed Clover | Fabaceae | G4T3? | S1 | T | |
| Trifolium thompsonii | Thompson's Clover | Fabaceae | G2 | S2 | T | SC |
| Trillium parviflorum | Small-flowered Trillium | Liliaceae | G2G3 | S2S3 | S | |
| Utricularia gibba | Humped Bladderwort | Lentibulariaceae | G5 | SNR | R1 | |
| Utricularia intermedia | Flat-leaved Bladderwort | Lentibulariaceae | G5 | S2 | S | |
| Utricularia minor | Lesser Bladderwort | Lentibulariaceae | G5 | S2? | R1 | |
| Vaccinium myrtilloides | Velvet-leaf Blueberry | Ericaceae | G5 | S1 | S | |
| Veratrum insolitum | Siskiyou False-hellebore | Liliaceae | G3 | S1 | T | |
| Viola renifolia | Kidney-leaved Violet | Violaceae | G5 | S2 | S | |
| Whipplea modesta | Yerba de Selva | Hydrangeaceae | G4 | SNR | R1 | |
| Wolffia columbiana | Columbia Water-meal | Lemnaceae | G5 | SNR | R1 | |
| Woodwardia fimbriata | Chain-fern | Blechnaceae | G5 | S2 | S | |
| Wyethia angustifolia | California Compassplant | Asteraceae | G4 | SU | S |
Washington Natural Heritage Program - www.dnr.wa.gov/ResearchScience/Topics/NaturalHeritage/Pages/amp_nh.aspx |
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Washington Dept. of Natural Resources, PO Box 47014, Olympia, WA 98504-7014 |