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2016 KLICKITAT COUNTY NOXIOUS WEED LIST Links in the tables below are to the Washington State Noxious Weed Control Board web site. Class A Weeds CLICK ABOVE LINK FOR PICTURES OF CLASS A WEEDS. The State of Washington through RCW 17.10 has listed the following Class A weeds for eradication statewide. Class A consists of those noxious weeds not native to state that are of limited distribution or are unrecorded in the state and that pose a serious threat to the state. (RCW 17.10.010.2.(a)) Common Name: Scientific Name broom, French Genista monspessulana broom, Spanish Spartium junceum common crupina Crupina vulgaris cordgrass, common Spartina anglica cordgrass, dense flower Spartina densiflora cordgrass, salt meadow Spartina patens cordgrass, smooth Spartina alterniflora dyers woad Isatis tinctoria eggleaf spurge * Euphorbia oblongata false brome Brachypodium sylvaticum floating primrose-willow Ludwigia peploides flowering rush Butomus umbellatus garlic mustard Alliaria petiolata giant hogweed * Heracleum mantegazzianum goatsrue Galega officinalis hydrilla Hydrilla verticillata johnsongrass * Sorghum halepense knapweed, bighead * Centaurea macrocephala knapweed, Vochin * Centaurea nigrescens kudzu Pueraria montana var. lobata meadow clary Salvia pratensis oriental clematis Clematis orientalis purple starthistle Centaurea calcitrapa Ravenna grass Saccharum ravennae reed sweetgrass Glyceria maxima ricefield bulrush Schoenoplectus mucronatus sage, clary Salvia sclarea sage, Mediterranean * Salvia aethiopis silverleaf Solanum elaeagnifolium spurge flax Thymelaea passerina ---PAGE BREAK--- Syrian bean-caper fabago Texas blueweed Helianthus ciliaris thistle, Italian Carduus pycnocephalus thistle, milk Silybum marianum thistle, slenderflower Carduus tenuiflorus variable-leaf milfoil wild four o'clock Mirabilis nyctaginea Class B-Designate Weeds CLICK ABOVE LINK FOR PICTURES OF CLASS B WEEDS. The State of Washington through RCW 17.10 has listed the following Class B weeds as designated for control in Klickitat County. Class B consists of those noxious weeds not native to the state that are of limited distribution or are unrecorded in a region of the state and that pose a serious threat to that region. (RCW 17.10.010.2(b)) Common Name Scientific Name blueweed Echium vulgare Brazilian elodea Egeria densa bugloss, annual Anchusa arvensis bugloss, common Anchusa officinalis camelthorn Alhagi maurorum common fennel Foeniculum vulgare common reed, nonnative Phragmites australis fanwort Cabomba caroliniana gorse Ulex europaeus grass-leaved arrowhead Sagittaria graminea hawkweed oxtongue Picris hieracioides hawkweed, orange Hieracium aurantiacum herb-Robert * Geranium robertianum knapweed, black Centaurea nigra knapweed, brown Centaurea jacea knotweed, Bohemian * Polygonuym x bohemicum knotweed, giant * Polygonum sachalinense knotweed, Himalayan Polygonum polystachyum knotweed, Japanese * Polygonum cuspidatum loosestrife, garden Lysimachia vulgaris loosestrife, purple * salicaria loosestrife, wand virgatum Nonnative hawkweed species and hybrids of WALL subgenus Hieracium subgenus, Hieracium parrotfeather aquaticum policeman’s helmet Impatiens glandulifera saltcedar * (unless intentionally planted prior to 2004) Tamarix ramosissima Shiny geranium Geranium lucidum ---PAGE BREAK--- spurge laurel Daphne laureola spurge, leafy * Euphorbia esula spurge, * Euphorbia myrsinites L thistle, musk Carduus nutans thistle, plumeless Carduus acanthoides thistle, Scotch * Onopordum acanthium velvetleaf Abutilon theophrasti water primrose Ludwigia hexapetala white bryony Bryonia alba wild chervil Anthriscus sylvestris yellow archangel * Lamiastrum galeobdolon yellow floating heart peltata Class B Weeds CLICK ABOVE LINK FOR PICTURES OF CLASS B WEEDS. The Klickitat County Noxious Weed Control Board through RCW 17.10 has listed the following Class B weeds, not designated by the State, to be on the county noxious weed list. Class B consists of those noxious weeds not native to the state that are of limited distribution or are unrecorded in a region of the state and that pose a serious threat to that region. (RCW 17.10.010.2(b)) Common Name Scientific Name butterfly bush * Buddleia davidii Dalmatian toadflax * Linaria dalmatica ssp. dalmatica Eurasian watermilfoil * spicatum hairy willow-herb * Epilobium hirsutum hoary alyssum * Berteroa incana houndstongue * Cynoglossum officinale indigobush * Amorpha fruticosa knapweed, diffuse * Centaurea diffusa knapweed, meadow * Centaurea x moncktonii knapweed, Russian * Acroptilon repens knapweed, spotted * Centaurea stoebe kochia * Kochia scoparia lesser celandine Ficaria verna Nonnative hawkweed species and hybrids of MEADOW subgenus Hieracium subgenus, Pilosella perennial pepperweed * Lepidium latifolium poison hemlock * Conium maculatum puncturevine * Tribulus terrestris rush skeletonweed * Chondrilla juncea Scotch broom * Cytisus scoparius sulfur cinquefoil * Potentilla recta tansy ragwort * Senecio jacobaea yellow nutsedge* Cyperus esculentus yellow starthistle * Centaurea solstitialis ---PAGE BREAK--- Class C Weeds CLICK ABOVE LINK FOR PICTURES OF CLASS C WEEDS. The Klickitat County Noxious Weed Control Board through RCW 17.10 has listed the following Class C weeds to be designated for control on the county noxious weed list. Class C consists of any other noxious weeds. (RCW 17.10.010.2(c)) Common Name Scientific Name Austrian fieldcress * Rorippa austriaca black henbane Hyoscyamus niger buffalobur * Solanum rostratum hairy whitetop * Lepidium appelianum hoary cress * Lepidium draba jubata grass Cortaderia jubata Italian arum Arum italicum longspine sandbur * Cenchrus longispinus Nonnative cattails Typha species pampas grass Cordaderia selloana spikeweed * Centromadia pungens spiny cocklebur * Xanthium spinosum Swainsonpea * Sphaerophysa salsula thistle, Canada * Cirsium arvense yellow flag iris * Iris pseudacorus Weeds of Local Concern These are additional non-native, invasive plant species that are of concern in Klickitat County. The Board encourages and recommends control and containment of existing populations, but control is not required. common St. Johnswort * Hypericum perforatum jointed goatgrass * Aegilops cylindrica wild carrot * Daucus carota *indicates known population in Klickitat County