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(Nok΄Shəs). Adj.1 Class A Weeds Class B (designated) Weeds nox•ious (nok΄shəs). adj.1. Harmful or common crupina Crupina vulgaris blueweed Echium vulgare spurge, leafy Euphorbia virgata injurious to health or physical well-being. cordgrass, common Spartina anglica Brazilian elodea Egeria densa sulfur cinquefoil Potentilla recta cordgrass, dense-flowered Spartina densiflora bugloss, annual Anchusa arvensis thistle, musk Carduus nutans The Whatcom County Noxious Weed List is cordgrass, saltmeadow Spartina patens bugloss, common Anchusa officinalis thistle, plumeless Carduus acanthoides made up of all Class A, Class B designates, cordgrass, smooth Spartina alterniflora camelthorn Alhagi maurorum thistle, Scotch Onopordum acanthium Foeniculum vulgare and any selections by the Whatcom County dyer’s woad Isatis tinctoria common fennel¹ velvetleaf Abutilon theophrasti common reed(nonnative genotypes) Noxious Weed Board from the Class B or eggleaf spurge Euphorbia oblongata Phragmites australis water primrose Ludwigia hexapetala false brome Brachypodium sylvaticum Dalmatian toadflax Linaria dalmatica ssp.dalmatica white bryony Class C Weed List. Bryonia alba floating primrose-willow Ludwigia peploides European coltsfoot Tussilago farfara yellow archangel Lamiastrum galeobdolon flowering rush Butomus umbellatus fanwort Cabomba caroliniana yellow floatingheart Nymphoides peltata Class A weeds: limited distribution in French broom Genista monspessulana gorse Ulex europaeus yellow nutsedge Cyperus esculentus Washington. Preventing new infestations and garlic mustard Alliaria petiolata grass-leaved arrowhead Sagittaria graminea yellow starthistle Centaurea solstitialis eradicating existing infestations is highest giant hogweed Heracleum mantegazzianum hawkweed oxtongue Picris hieracioides priority. Control of these species is required goatsrue Galega officinalis hawkweeds² Hieracium , subgenus Pilosella Class B - Whatcom County - Selected by law. hydrilla Hydrilla verticillata hoary alyssum Berteroa incana Johnsongrass Sorghum halepense houndstongue Cynoglossum officinale butterfly bush Buddleja davidii knapweed, bighead Centaurea macrocephala indigobush Amorpha fruticosa lesser celandine Ficaria verna knapweed, Vochin Centaurea nigrescens knapweed, black Centaurea nigra hawkweed, orange Hieracium aurantiacum Class B weeds: distribution limited in portions kudzu Pueraria montana var. lobata knapweed, brown Centaurea jacea hawkweeds³ Hieracium,subgenus Hieracium of the state. Class B weed species are meadow clary Salvia pratensis knapweed, diffuse Centaurea diffusa herb-Robert Geranium robertianum separated into two categories: Designated oriental clematis Clematis orientalis knapweed, Russian Rhaponticum repens knapweed, meadow Centaurea x moncktonii and County-Selected. Prevention of seedfall purple starthistle Centaurea calcitrapa knotweed, giant Polygonum sachalinense knapweed, spotted Centaurea stoebe reed sweetgrass Glyceria maxima knotweed, Himalayan Persicaria wallichii knotweed, Bohemian Polygonum x bohemicum of Class B-Designated weeds is required. ricefield bulrush Schoenoplectus mucronatus knotweed, Japanese Polygonum cuspidatum poison hemlock Conium maculatum Class B County-Selected weeds are targeted sage, clary Salvia sclarea kochia Bassia scoparia policeman’s helmet Impatiens glandulifera for control, mapping, educational or biological sage, Mediterranean Salvia aethiopis loosestrife, garden Lysimachia vulgaris tansy ragwort Jacobaea vulgaris efforts. silverleaf nightshade Solanum elaeagnifolium loosestrife, purple Lythrum salicaria Scotch broom Cytisus scoparius small-flowered jewelweed Impatiens parviflora loosestrife, wand Lythrum virgatum Eurasian watermilfoil Myriophyllum spicatum Spanish broom Spartium junceum Malta starthistle Centaurea melitensis wild chervil Anthriscus sylvestris Syrian beancaper Zygophyllum fabago parrotfeather Myriophyllum aquaticum hairy willowherb Epilobium hirsutum Class C weeds: widespread in the state and Texas blueweed Helianthus ciliaris perennial pepperweed Lepidium latifolium are targeted for mapping, educational or thistle, Italian Carduus pycnocephalus puncturevine Tribulus terrestris biological efforts in Whatcom County. thistle, milk Silybum marianum rush skeletonweed Chondrilla juncea thistle, slenderflower Carduus tenuiflorus saltcedar Tamarix ramosissima variable-leaf milfoil Myriophyllum heterophyllum shiny geranium Geranium lucidum wild four-o'clock Mirabilis nyctaginea spurge laurel Daphne laureola Frequently Asked Questions Class C - Whatcom County - Selected How is a plant designated a “Noxious Weed”? common St. Johnswort Hypericum perforatum The Washington State Noxious Weed Board, a If you would like more information, contact: common tansy Tanacetum vulgare group of citizen volunteers representing all parts of the state, annually adopts and publishes a list curlyleaf pondweed Potamogeton crispus of weeds to be controlled or eradicated based on Whatcom County English hawthorn Crataegus monogyna public comment and input from county weed Noxious Weed Control Board English ivy4 Hedera helix boards. The Whatcom County Weed Board then 322 N. Commercial St., Suite 110 Eurasian watermilfoil Myriophyllum spicatum x M.sibiricum customizes this list and adopts the Whatcom Bellingham, WA 98225 County Noxious Weed List each year. These are evergreen blackberry Rubus laciniatus (360) 778-6232 or (360) 778-6234 priority weeds that may be required by law to be fragrant waterlily Nymphaea odorata controlled by the property owner. http://www.whatcomcounty.us/914/Weeds Himalayan blackberry Rubus armeniacus email: [email protected] Italian arum Arum italicum If it’s a “Noxious Weed” does that mean jubata grass Cortaderia jubata that it’s poisonous? Some noxious weeds are poisonous, but not all medusahead Taeniatherum caput-medusae of them are. Toxicity in a noxious weed may be nonnative cattail⁵ Typha spp. just one of the problems associated with it. By old man's beard Clematis vitalba legal definition, noxious weeds are non-native pampas grass Cortaderia selloana plants that have been introduced to Washington reed canarygrass Phalaris arundinacea State. Because of their aggressive growth and lack of natural enemies, these weeds can be spotted jewelweed Impatiens capensis highly destructive, competitive, or difficult to The Washington State Noxious Weed List is updated thistle, bull Cirsium vulgare control. They are harmful because they reduce annually. thistle, Canada Cirsium arvense crop yields, destroy native plant and animal Everyone is encouraged to participate in the process. tree-of-heaven Ailanthus altissima habitat, damage outdoor recreational For additional information, contact: ventenata Ventenata dubia opportunities, clog waterways, lower land values, create erosion problems and fire hazards, and yellowflag iris Iris pseudacorus they can also poison humans and livestock. Washington State Noxious Weed Control Board PO Box 42560 ¹(except F. vulgare var. azoricum) What should I do if I have these weeds on Olympia, WA 98504-2560 my property? (360) 902-2053 ²All nonnative species and hybrids of the meadow subgenus Under state weed law Chapter 17.10 RCW, ³All nonnative species and hybrids of the wall subgenus landowners are responsible for the eradication of website: www.nwcb.wa.gov Class A and the management of certain Class B ⁴Cultivars:'Baltica’, 'Pittsburgh', 'Star'; H. hibernica 'Hibernica' noxious weeds on their property. No specific ⁵including but not limited to Typha angustifloia, T.domingensis, method of control is required; the landowner may choose whatever cultural, mechanical, chemical, T.minima, T.x glauca or biological method that obtains the desired result. For best results, the type of control selected by the landowner should take into Noxious weeds identified with an underline consideration the weed, its life cycle and location. receive highest priority for education, survey All weeds are not alike and it is critical to identify Purple Loosestrife and/or notification to owners of infested and understand your target weeds. Whatcom (Lythrum salicaria) property. Bold type indicates species which County Weed Board staff can provide information Class B Noxious Weed have been recorded as present in Whatcom on the best methods for problem weeds and the County. particular site conditions. .
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