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CLARK COUNTY NOXIOUS WEED CONTROL BOARD We are committed to noxious weed control throughout our county. We assist with plant identification and integrated weed management planning. Contact our office for information. Help protect our people, farms, and natural resources from harmful noxious weeds! WASHINGTON STATE NOXIOUS WEED LAW RCW 17.10 and CCC Title 7 Controlling noxious weeds is the responsibility of the landowner. Weeds designated for control in Clark County: Class A common crupina, cordgrass-common, cordgrass-dense-flowered, cordgrass-saltmeadow, cordgrass-smooth, delta arrowhead, dyers woad, eggleaf spurge, false brome, floating primrose-willow, flowering rush, French broom, garlic mustard, giant hogweed, goatsrue, hydrilla, Johnsongrass, knapweed-bighead, knapweed-Vochin, kudzu, meadow clary, oriental clematis, Palmer amaranth, purple starthistle, reed sweetgrass, ricefield bulrush, roundleaf bittersweet, sage-clary, sage-Mediterranean, silverleaf nightshade, small-flowered jewelweed, South American spongeplant, Spanish broom, Syrian beancaper, Texas blueweed, thistle-Italian, thistle-marsh, thistle-milk, thistle-slenderflower, thistle-Turkish, variable-leaf milfoil and hybrid, waterhemp, wild four-oclock Class B blueweed, Brazilian elodea, bugloss-annual, bugloss-common, butterfly bush**, camelthorn, common reed (nonnative), common tansy, Dalmatian toadflax, Eurasian watermilfoil***, European coltsfoot, fanwort, gorse, grass-leaved arrowhead, hairy willowherb, hanging sedge, hawkweed oxtongue, hawkweed-orange, hawkweeds: all nonnative, hoary alyssum, houndstongue, knapweed-black, knapweed-brown, knapweed-diffuse, knapweed-meadow*, knapweed-Russian, knapweed-spotted, knotweed-Bohemian, knotweed-giant, knotweed-Himalayan, knotweed-Japanese, kochia, lesser celandine, loosestrife-garden, loosestrife-purple, loosestrife-wand, Malta starthistle, parrotfeather, poison hemlock, policemans helmet, puncturevine, Ravenna grass, rough chervil, rush skeletonweed, saltcedar, Scotch broom*, shiny geranium*, spurge flax, spurge laurel, spurge-leafy, spurge-myrtle, sulfur cinquefoil, tansy ragwort, thistle-musk, thistle-plumeless, thistle-Scotch, velvetleaf, water primrose, white bryony, wild basil, wild chervil, yellow floatingheart, yellow nutsedge, yellow starthistle Class C absinth wormwood, babysbreath, black henbane, black locust, buffalobur, common holly (except where commercially grown), fragrant waterlily, hairy whitetop, hoary cress, medusahead, Norway maple, Russian olive, spikeweed, thistle-bull*, thistle-Canada*, yellow flag iris * Control is not mandated unless weeds are within 100 of neighboring property producing agriculture. ** Control is not mandated unless weeds are within 100 of natural waterbody. *** Control is mandated unless weeds are within 100 of Columbia River. Noxious Weed Management 4700 NE 78th St Bldg. G Vancouver WA 98665 (564)397-6140 weed.board@clark.wa.gov www.clark.wa/weed-board Feb. 12 - 1080050