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Native plants · Washington

Native plants of Clark County

184 plant species are recorded as native to Washington in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Clark County by USDA PLANTS. 130 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 3 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Clark County, Washington

Native species
184 Typical Washington county: 300 (median of 39 counties)
Garden-ready natives
130 Typical Washington county: 219
Share by type (all 184 native species)
Percent of the 184 native species in each growth type
Tree 12% (22)
Shrub 10% (19)
Wildflower (forb) 51% (94)
Grass or grass-like 19% (35)
Vine 3% (5)
Fern 5% (9)

Wildflowers make up the largest share of the native list (51%), followed by grasses and grass-like plants (19%).

Recorded native ranges can include long-established populations that spread from gardens; check your state’s native plant society list for local guidance. How native status is decided.

ZIP codes mainly in this county fall in USDA hardiness zone 8b (2023 map).

The native plant list

Cold hardiness is estimated from each plant’s PLANTS minimum temperature. How we estimate it.

Garden-ready natives 130

Native species with PLANTS growing records (height, light, moisture, minimum temperature). “—” means PLANTS has no value.

Garden-ready native plants of Clark County, Washington
PlantType HeightLight Water useHardy to
Alaska oniongrass Melica subulata Grass or grass-like 3.3 ft Shade-tolerant Medium Zone 4a
American bistort Polygonum bistortoides Wildflower (forb) 1.5 ft Sun High Zone 3b
American speedwell Veronica americana Wildflower (forb) 10 in Shade-tolerant High Zone 3b
American vetch Vicia americana Vine 1.3 ft Sun Low Zone 3b
awlfruit sedge Carex stipata Grass or grass-like 3.5 ft Shade-tolerant Medium Zone 3b
beaked hazelnut Corylus cornuta Tree 15 ft Shade-tolerant Medium Zone 2b
Bebb's sedge Carex bebbii Grass or grass-like 3 ft Shade-tolerant High Zone 3b
bigleaf maple Acer macrophyllum Tree 60 ft Sun–part shade Medium Zone 6a
black hawthorn Crataegus douglasii Tree 15 ft Sun–part shade High Zone 2b
blunt spikerush Eleocharis obtusa Grass or grass-like 1.6 ft Sun Medium Zone 11a
bristlystalked sedge Carex leptalea Grass or grass-like 1.5 ft Shade-tolerant High Zone 4a
broadleaf cattail Typha latifolia Wildflower (forb) 5 ft Sun–part shade High Zone 3b
broadleaf lupine Lupinus latifolius Wildflower (forb) 25 ft Shade-tolerant High Zone 5b
broom sedge Carex scoparia Grass or grass-like 2.5 ft Shade-tolerant High Zone 3b
California blackberry Rubus ursinus Shrub 2 ft Sun Medium Zone 8a
California false hellebore Veratrum californicum Wildflower (forb) 6 ft Shade-tolerant High Zone 3b
California oatgrass Danthonia californica Grass or grass-like 2 ft Sun Medium Zone 9a
California poppy Eschscholzia californica Wildflower (forb) 1.2 ft Sun–part shade Low Zone 8a
Canada goldenrod Solidago canadensis Wildflower (forb) 3.5 ft Sun Medium Zone 3a
Canadian horseweed Conyza canadensis Wildflower (forb) 5 ft Sun Medium Zone 12b
Canadian waterweed Elodea canadensis Wildflower (forb) — Sun High Zone 4a
Cascade barberry Mahonia nervosa Shrub 2 ft Shade-tolerant Low Zone 5b
Cascara buckthorn Frangula purshiana Tree 35 ft Shade-tolerant Medium Zone 7a
chamisso sedge Carex pachystachya Grass or grass-like 3.5 ft Shade-tolerant Medium Zone 3b
clasping arnica Arnica amplexicaulis Wildflower (forb) 2.5 ft Shade-tolerant High Zone 5a
cluster rose Rosa pisocarpa Shrub 3 ft Sun — Zone 5a
common cowparsnip Heracleum maximum Wildflower (forb) 8 ft Sun High Zone 3b
common duckweed Lemna minor Wildflower (forb) — Sun High Zone 3b
common evening primrose Oenothera biennis Wildflower (forb) 5 ft Sun Medium Zone 4b
common selfheal Prunella vulgaris Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 3b
common sneezeweed Helenium autumnale Wildflower (forb) 4.9 ft Sun Medium Zone 3a
common snowberry Symphoricarpos albus Shrub 3 ft Sun Medium Zone 3b
common spikerush Eleocharis palustris Grass or grass-like 1.3 ft Sun High Zone 3b
cous biscuitroot Lomatium cous Wildflower (forb) 10 in Sun Low Zone 4b
cursed buttercup Ranunculus sceleratus Wildflower (forb) 2 ft Shade-tolerant High Zone 12b
deer fern Blechnum spicant Fern 3.5 ft Sun–part shade High Zone 6b
Dewey sedge Carex deweyana Grass or grass-like 3.8 ft Shade-tolerant Medium Zone 4a
dotted smartweed Polygonum punctatum Wildflower (forb) 3.2 ft Sun Medium Zone 10b
Douglas aster Symphyotrichum subspicatum Wildflower (forb) 4 in Sun–part shade High Zone 6b
Douglas-fir Pseudotsuga menziesii Tree 200 ft Sun–part shade Medium Zone 4a
dwarf rose Rosa gymnocarpa Shrub 3 ft Shade-tolerant Medium Zone 5b
false indigo bush Amorpha fruticosa Shrub 15 ft Sun Low Zone 3b
fireweed Chamerion angustifolium Wildflower (forb) 5.5 ft Sun–part shade High Zone 3b
fowl bluegrass Poa palustris Grass or grass-like 4 ft Sun–part shade Medium Zone 3b
fox sedge Carex vulpinoidea Grass or grass-like 3.2 ft Sun–part shade Medium Zone 3b
golden tickseed Coreopsis tinctoria Wildflower (forb) 3 ft Sun–part shade High Zone 12b
greater creeping spearwort Ranunculus flammula Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4a
harsh Indian paintbrush Castilleja hispida Wildflower (forb) 1.5 ft Sun Low Zone 5a
hollyleaved barberry Mahonia aquifolium Shrub 8 ft Shade-tolerant Low Zone 3a
Hooker's balsamroot Balsamorhiza hookeri Wildflower (forb) 1 ft Sun–part shade Medium Zone 5b
Idaho blue-eyed grass Sisyrinchium idahoense Wildflower (forb) 1.7 ft Shade-tolerant High Zone 3b
Indian plum Oemleria cerasiformis Tree 5 ft Sun–part shade — Zone 10a
inland sedge Carex interior Grass or grass-like 1.5 ft Sun–part shade High Zone 3b
largeleaf avens Geum macrophyllum Wildflower (forb) 2 ft Shade-tolerant Medium Zone 4a
Lewis' mock orange Philadelphus lewisii Shrub 12 ft Sun Low Zone 8a
little western bittercress Cardamine oligosperma Wildflower (forb) 1.7 ft Shade-tolerant Medium Zone 5a
longleaf pondweed Potamogeton nodosus Wildflower (forb) — Sun High Zone 3b
longstalk starwort Stellaria longipes Wildflower (forb) 11 in Sun–part shade High Zone 4a
maiden blue eyed Mary Collinsia parviflora Wildflower (forb) 1 ft Shade-tolerant Medium Zone 4a
marsh seedbox Ludwigia palustris Wildflower (forb) 2 in Sun High Zone 4a
meadow barley Hordeum brachyantherum Grass or grass-like 2 ft Sun Medium Zone 3a
miner's lettuce Claytonia perfoliata Wildflower (forb) 1 ft Shade-tolerant Medium Zone 12b
needle spikerush Eleocharis acicularis Grass or grass-like 8 in Sun Medium Zone 5a
Nootka rose Rosa nutkana Shrub 10 ft Shade-tolerant High Zone 8a
oceanspray Holodiscus discolor Shrub 12 ft Sun High Zone 8a
Oregon ash Fraxinus latifolia Tree 70 ft Sun–part shade Medium Zone 6b
Oregon crab apple Malus fusca Tree 15 ft Sun–part shade — Zone 10a
Oregon white oak Quercus garryana Tree 80 ft Sun Low Zone 4a
Pacific bleeding heart Dicentra formosa Wildflower (forb) 1.5 ft Shade-tolerant Low Zone 5a
Pacific dogwood Cornus nuttallii Tree 50 ft Shade-tolerant Medium Zone 4b
Pacific lupine Lupinus lepidus Wildflower (forb) 6 ft Sun Low Zone 5b
Pacific madrone Arbutus menziesii Tree 80 ft Sun–part shade Low Zone 8b
Pacific ninebark Physocarpus capitatus Shrub 8 ft Sun Low Zone 4a
Pacific rhododendron Rhododendron macrophyllum Tree 15 ft Sun–part shade High Zone 8a
Pacific yew Taxus brevifolia Tree 40 ft Shade-tolerant Low Zone 5b
panicled bulrush Scirpus microcarpus Grass or grass-like 5.5 ft Sun Medium Zone 3b
Philadelphia fleabane Erigeron philadelphicus Wildflower (forb) 2.8 ft Sun–part shade Medium Zone 4b
plantainleaf buttercup Ranunculus alismifolius Wildflower (forb) 2 ft Sun–part shade High Zone 4a
poverty rush Juncus tenuis Grass or grass-like 1.5 ft Sun–part shade Medium Zone 3b
prairie fleabane Erigeron strigosus Wildflower (forb) 3 ft Sun Medium Zone 4b
quaking aspen Populus tremuloides Tree 65 ft Sun High Zone 1a
rattlesnake fern Botrychium virginianum Fern 1.4 ft Shade-tolerant Medium Zone 3b
red alder Alnus rubra Tree 90 ft Sun High Zone 5a
red elderberry Sambucus racemosa Tree 18 ft Sun–part shade High Zone 4a
red huckleberry Vaccinium parvifolium Shrub 12 ft Shade-tolerant Low Zone 6a
redflower currant Ribes sanguineum Shrub 12 ft Sun–part shade Medium Zone 8a
redosier dogwood Cornus sericea Tree 12 ft Sun High Zone 3b
redroot flatsedge Cyperus erythrorhizos Grass or grass-like 2.5 ft Sun Medium Zone 11a
redstem ceanothus Ceanothus sanguineus Shrub 10 ft Sun–part shade High Zone 6a
reed canarygrass Phalaris arundinacea Grass or grass-like 5 ft Sun High Zone 3b
river bulrush Bolboschoenus fluviatilis Grass or grass-like 6.6 ft Sun Medium Zone 3b
rose spirea Spiraea douglasii Shrub 7 ft Sun Low Zone 5a
salal Gaultheria shallon Shrub 6 ft Shade-tolerant High Zone 8a
salmonberry Rubus spectabilis Vine 12 ft Sun–part shade Medium Zone 4a
Saskatoon serviceberry Amelanchier alnifolia Tree 15 ft Sun–part shade Medium Zone 1a
seep monkeyflower Mimulus guttatus Wildflower (forb) 2.5 ft Shade-tolerant High Zone 3b
shining willow Salix lucida Tree 13 ft Sun–part shade High Zone 3a
shiny chickweed Stellaria nitens Wildflower (forb) 10 in Shade-tolerant Medium Zone 12a
Siberian springbeauty Claytonia sibirica Wildflower (forb) 1.4 ft Shade-tolerant Medium Zone 3a
sicklekeel lupine Lupinus albicaulis Wildflower (forb) 3 ft Sun Medium Zone 12a
Sierra fumewort Corydalis caseana Wildflower (forb) 3 ft Shade-tolerant Medium Zone 2b
Sierra rush Juncus nevadensis Grass or grass-like 2 ft Sun–part shade High Zone 4a
silvery lupine Lupinus argenteus Wildflower (forb) 1.5 ft Sun Low Zone 3a
slender cinquefoil Potentilla gracilis Wildflower (forb) 2.4 ft Sun Low Zone 3a
slough sedge Carex obnupta Grass or grass-like 3 ft Sun–part shade High Zone 7a
small camas Camassia quamash Wildflower (forb) 2.3 ft Shade-tolerant High Zone 4b
small enchanter's nightshade Circaea alpina Wildflower (forb) 11 in Shade-tolerant Medium Zone 3b
smallflowered woodrush Luzula parviflora Grass or grass-like 2 ft Shade-tolerant High Zone 4a
smooth horsetail Equisetum laevigatum Fern 5 ft Sun Low Zone 3b
spike bentgrass Agrostis exarata Grass or grass-like 3 ft Sun Medium Zone 3b
sticky cinquefoil Potentilla glandulosa Wildflower (forb) 1.5 ft Sun–part shade Low Zone 4a
swamp smartweed Polygonum hydropiperoides Wildflower (forb) — Sun Medium Zone 10b
swordleaf rush Juncus ensifolius Grass or grass-like 2 ft Sun–part shade High Zone 3b
tapertip rush Juncus acuminatus Grass or grass-like 3 ft Sun–part shade High Zone 4a
teal lovegrass Eragrostis hypnoides Grass or grass-like 4 in Sun High Zone 3b
thimbleberry Rubus parviflorus Shrub 4 ft Sun–part shade High Zone 4b
threepetal bedstraw Galium trifidum Vine 10 in Sun–part shade High Zone 3b
toad rush Juncus bufonius Grass or grass-like 1 ft Sun Medium Zone 12a
toughleaf iris Iris tenax Wildflower (forb) 1.5 ft Shade-tolerant Medium Zone 6a
twinberry honeysuckle Lonicera involucrata Shrub 10 ft Shade-tolerant High Zone 3a
vine maple Acer circinatum Tree 20 ft Shade-tolerant Medium Zone 6a
water birch Betula occidentalis Tree 25 ft Sun–part shade High Zone 1a
western columbine Aquilegia formosa Wildflower (forb) 3 ft Shade-tolerant Medium Zone 5a
western goldentop Euthamia occidentalis Wildflower (forb) 6 ft Sun Medium Zone 4b
western pearly everlasting Anaphalis margaritacea Wildflower (forb) 3 ft Sun–part shade Medium Zone 3a
western redcedar Thuja plicata Tree 150 ft Shade-tolerant Medium Zone 4a
western swordfern Polystichum munitum Fern 3.5 ft Shade-tolerant High Zone 4a
Wheeler bluegrass Poa nervosa Grass or grass-like 1.8 ft Sun Medium Zone 5b
white sagebrush Artemisia ludoviciana Wildflower (forb) 3 ft Sun Low Zone 4a
whitebark raspberry Rubus leucodermis Vine 1 ft Sun Medium Zone 8a

Other native species recorded here 54

PLANTS has no growing records for these, so light, moisture, height and zone filters cannot include them. Many are wild species seldom sold by nurseries.

  • Aleutian maidenhair Adiantum aleuticum
  • American mannagrass Glyceria grandis
  • American yellowrocket Barbarea orthoceras
  • bay forget-me-not Myosotis laxa
  • bearded flatsedge Cyperus squarrosus
  • big devils beggartick Bidens vulgata
  • bigbract verbena Verbena bracteata
  • bigleaf lupine Lupinus polyphyllus
  • blue skullcap Scutellaria lateriflora
  • bluntleaf yellowcress Rorippa curvipes
  • bog yellowcress Rorippa palustris
  • Canadian gooseberry Ribes oxyacanthoides
  • clammy hedgehyssop Gratiola neglecta
  • cottonbatting plant Pseudognaphalium stramineum
  • Douglas' knotweed Polygonum douglasii
  • elk sedge Carex garberi
  • false mermaidweed Floerkea proserpinacoides
  • fragrant bedstraw Galium triflorum
  • fringed willowherb Epilobium ciliatum
  • green carpetweed Mollugo verticillata
  • hairy hedgenettle Stachys pilosa
  • hairy waterclover Marsilea vestita
  • hemlock waterparsnip Sium suave
  • hooded coralroot Corallorhiza striata
  • lanceleaf figwort Scrophularia lanceolata
  • largeleaf sandwort Moehringia macrophylla
  • maidenhair spleenwort Asplenium trichomanes
  • manyflowered monkeyflower Mimulus floribundus
  • marsh horsetail Equisetum palustre
  • marsh violet Viola palustris
  • muskflower Mimulus moschatus
  • narrowleaf minerslettuce Montia linearis
  • neckweed Veronica peregrina
  • needleleaf navarretia Navarretia intertexta
  • nodding onion Allium cernuum
  • northern water plantain Alisma triviale
  • northern woodland violet Viola septentrionalis
  • oneflowered broomrape Orobanche uniflora
  • rough barnyardgrass Echinochloa muricata
  • skullcap speedwell Veronica scutellata
  • sleepy silene Silene antirrhina
  • slender phlox Microsteris gracilis
  • smooth goosefoot Chenopodium subglabrum
  • spinulose woodfern Dryopteris carthusiana
  • starry false lily of the valley Maianthemum stellatum
  • stream orchid Epipactis gigantea
  • sweetcicely Osmorhiza berteroi
  • water mudwort Limosella aquatica
  • water pygmyweed Crassula aquatica
  • western marsh cudweed Gnaphalium palustre
  • witchgrass Panicum capillare
  • woodland strawberry Fragaria vesca
  • woolly sedge Carex pellita
  • yellowseed false pimpernel Lindernia dubia
Also listed as native and introduced here 3

PLANTS labels these species both native and introduced in this state: some forms are native and others were brought in from elsewhere. Most gardeners should choose plants from the main list.

  • biennial wormwoodArtemisia biennis
  • hedge false bindweedCalystegia sepium
  • Kentucky bluegrassPoa pratensis

Compared with Washington

The typical county is the median of the 39 Washington counties with PLANTS county records; the statewide figure counts every species native anywhere in the state. More species is not better or worse: counties differ in size, habitat and how thoroughly they have been surveyed.

Native species counts, Clark County and Washington
MeasureClark CountyTypical countyStatewide
Native species 184 300 1,015
Garden-ready natives 130 219 621
Tree 22 — 74
Shrub 19 — 99
Wildflower (forb) 94 — 547
Grass or grass-like 35 — 234
Vine 5 — 16
Fern 9 — 45

Neighboring counties

Counties that share a ZIP code with Clark County.

Look up another ZIP

Matches your ZIP to the county it mostly lies in, then lists the plants recorded as native to your state (Kew’s World Checklist and USDA PLANTS) and recorded in that county by USDA PLANTS.

Source & data date

Source
USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).
Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.
USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
Citation
USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.
Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
Data date
Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
Zones
USDA Plant Hardiness Zone Map (2023) ZIP table: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 3, 2026. Plant zones on this site are our estimate, not the official map.
Scope
Clark County (county FIPS 53011), Washington. 184 native species from PLANTS county distribution records; garden-ready = species with a PLANTS characteristics record.
Method
A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources

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