*Class A lesser celandine Ficaria verna *Eurasian watermilfoil Myriophyllum spicatum X Class B Weeds- Required Control *loosestrife, garden Lysimachia vulgaris hybrid M. sibiricum Eradication is required *blueweed Echium vulgare loosestrife, purple Lythrum salicaria evergreen blackberry Rubus laciniatus common crupina Crupina vulgaris *Brazilian elodea Egeria densa loosestrife, wand Lythrum virgatum field bindweed Convolvulus arvensis cordgrass, common Spartina anglica *bugloss, annual Anchusa arvensis *Malta starthistle melitensis Himalayan blackberry Rubus armeniacus cordgrass, dense- Spartina densiflora parrotfeather Myriophyllum aquaticum Italian arum Arum italicum flowered *bugloss, common Anchusa perennial pepperweed Lepidium latifolium Jubata grass Cortaderia jubata cordgrass, saltmeadow Spartina patens *butterfly bush Buddleja davidii *camelthorn Alhagi maurorum poison hemlock Conium maculatum old man's beard Clematis vitalba cordgrass, smooth Spartina alterniflora Foeniculum vulgare *policeman’s helmet Impatiens glandulifera oxeye daisy Leucanthemum vulgare dyer’s woad Isatis tinctoria *common fennel, (except bulbing fennel) (except F. vulgare var. *puncturevine Tribulus terrestris Pampas grass Cortaderia selloana eggleaf spurge Euphorbia oblongata azoricum) * Revenna grass Saccharum revennae Russian olive Elaeagnus angustifolia false brome Brachypodium sylvaticum *common reed (nonnative Phragmites australis *rush skeletonweed Chondrilla juncea scentless mayweed Matricaria perforata floating primrose-willow Ludwigia peploides genotypes only) *saltcedar Tamarix ramosissima spiny cocklebur spinosum flowering rush Butomus umbellatus Dalmatian toadflax Linaria dalmatica ssp. Scotch broom Cytisus scoparius *Spotted jewelweed Impatiens capensis French broom Genista monspessulana dalmatica *shiny geranium Geranium lucidum Swainsonpea Sphaerophysa salsula garlic mustard Alliaria petiolata *Eurasian watermilfoil Myriophyllum spicatum Spurge flax Thymelaea passerina thistle, bull Cirsium vulgare giant hogweed Heracleum mantegazzianum *European coltsfoot Tussilago farfara *spurge laurel Daphne laureola thistle, Canada Cirsium arvense goatsrue Galega officinalis fanwort Cabomba caroliniana *spurge, leafy Euphorbia virgata tree-of-heaven Ailanthus altissima hydrilla Hydrilla verticillata *gorse Ulex europaeus *spurge, myrtle Euphorbia myrsinites white cockle Silene latifolia ssp. alba Johnsongrass Sorghum halepense *grass-leaved arrowhead Sagittaria graminea *sulfur cinquefoil Potentilla recta wild carrot (except where Daucus carota knapweed, bighead Centaurea macrocephala *hairy willowherb Epilobium hirsutum ragwort vulgaris commercially grown) knapweed, Vochin Centaurea nigrescens *hawkweed, oxtongue Picris hieracioides *thistle, musk Carduus nutans yellowflag iris Iris pseudacorus kudzu Pueraria montana var. lobata *hawkweed, orange Hieracium aurantiacum *thistle, plumeless Carduus acanthoides yellow toadflax Linaria vulgaris meadow clary Salvia pratensis hawkweeds: All Hieracium, subgenus *thistle, Scotch Onopordum acanthium oriental clematis Clematis orientalis nonnative species and Pilosella *velvetleaf Abutilon theophrasti purple starthistle Centaurea calcitrapa hybrids of the meadow water primrose Ludwigia hexapetala * State designated high priority for control and reed sweetgrass Glyceria maxima subgenus *white bryony Bryonia alba enforcement = Required control ricefield bulrush Schoenoplectus mucronatus *hawkweeds: All Hieracium, subgenus wild chervil Anthriscus sylvestris sage, clary Salvia sclarea nonnative species and Hieracium yellow archangel Lamiastrum galeobdolon sage, Mediterranean Salvia aethiopis hybrids of the wall Control required specially along transportation right- yellow floatingheart Nymphoides peltata silverleaf nightshade Solanum elaeagnifolium subgenus of-ways, near residential communities (fire danger), *yellow nutsedge Cyperus esculentus Spanish broom Spartium junceum herb-Robert Geranium robertianum areas where create a significant impact to *yellow starthistle Centaurea solstitialis Small-flowered Impatiens parviflora *hoary alyssum Berteroa incana managed pastures or farmland. jewelweed *houndstongue officinale Syrian beancaper Zygophyllum fabago indigobush Amorpha fruticosa Bold listings – documented species in Cowlitz Co. Texas blueweed Helianthus ciliaris *knapweed, black Class C Weeds buffalobur Solanum rostratum thistle, Italian Carduus pycnocephalus *knapweed, brown Highlighted listings – County select class B and C high nonnative cattail species Typha spp. thistle, milk Silybum marianum knapweed, diffuse Centaurea diffusa priority weeds for control and enforcement action. and hybrids thistle, slenderflower Carduus tenuiflorus knapweed, meadow Centaurea x moncktonii variable- milfoil Myriophyllum heterophyllum *knapweed, Russian Rhaponticum repens common groundsel vulgaris wild four-o'clock Mirabilis nyctaginea knapweed, spotted Centaurea stoebe common St. Johnswort Hypericum perforatum knotweed, Bohemian Polygonum x common tansy Tanacetum vulgare bohemicum common teasel Dipsacus fullonum English hawthorn Crataegus monogyna Please help protect Washington’s knotweed, giant Polygonum sachalinense *knotweed, Himalayan Persicaria wallichii English ivy - four Hedera helix 'Baltica’, economy and environment knotweed, Japanese Polygonum cuspidatum cultivars only 'Pittsburgh', and 'Star'; from noxious weeds! *kochia Bassia scoparia H. hibernica 'Hibernica'

* New additions to the 2008 Noxious List

Noxious Weeds are non-native plants Class A Weeds: Non-native species whose 2019 introduced to Washington State that can be distribution in Washington is still limited. highly destructive, competitive, and difficult to Preventing new infestations and eradicating Control Board Noxious Weed List control. These plants invade our croplands, existing infestations are the highest priority. Of Cowlitz County Eradication of all Class A plants is required by for Cowlitz County rangeland, forests, parks, rivers, lakes, wetlands, 207 Fourth Ave. N. law. and estuaries causing both ecological and Kelso, WA 98628-4124 economical damage that affects us all. Noxious Tel. (360)577-3117 weeds can: Class B Weeds: Non-native species presently Website: http://co.cowlitz.wa.us . Lower crop yields limited to portions of the State. Species are

. Reduce forage quality designated for control in regions where they are . Destroy plant and animal habitat not yet widespread. Preventing new infestations . Displace native plants in these areas is a high priority. In regions where Or . Reduce recreational opportunities (e.g., a Class B species is already abundant, control is fishing, hunting, swimming and hiking) decided at the local level, with containment as WA State Noxious Weed Control Board . Clog waterways the primary goal. Please contact your County P.O. Box 42560 . Decrease land values Noxious Weed Control Coordinator to learn Olympia, WA 98504-2560 . Increase erosion and wildfire risk which species are designated in your area. (360) 725-5764 . And some are toxic to humans and livestock Class C Weeds: These are noxious weeds Email: [email protected] typically widespread in WA State or are of special interest to the state’s agricultural Website: http://nwcb.wa.gov To help protect the State’s resources and industry. The Class C status allows counties to economy, the Washington State Noxious Weed require control if locally desired. Other counties Control Board adopts a State Noxious Weed List may choose to provide education or technical Or each year (WAC 16-750). This list classifies consultation. weeds into three major classes – A, B, and C – WA State Department of Agriculture based on the stage of invasion of each species Natural Resource Building and the seriousness of the threat they pose to P.O. Box 42560 Washington State. This classification system is 1111 Washington St. SE designed to: Olympia, WA 98504-2560 . Prevent small infestations from expanding Tel. (360)902-1800 by eradicating them when they are first Tussilago farfara L.

detected Atlas des plantes de France. 1891 by Amédéé Masclef. . Restrict already established weed Website: http://agr.wa.gov populations to regions of the state where Public domain. they occur and prevent their movement

to un-infested areas To learn more about noxious weeds and List arranged alphabetically by: . Allow flexibility of weed control at the noxious weed control in Washington State,

local level for weeds that are already Please contact: COMMON NAME widespread.

* New additions to the 2008 Noxious Weed List