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Region 2 Class B Weed Designates

Region 2 contains all lands lying within the boundaries of Whatcom, Skagit, Snohomish, San Juan, and Island Counties.

Common name Scientific name Designated for control in:
alyssum, hoary Berteroa incana All of Region 2
arrowhead, grass-leaved Sagittaria graminea Region 2, except Lake Roesiger, Lake Serene, Lake Loma, and Echo Lake in Snohomish County
blackgrass Alopecurus myosuroides All of Region 2
blueweed Echium vulgare All of Region 2
bryony, white Byronia alba All of Region 2
bugloss, common Anchusa officinalis All of Region 2
bugloss, annual Anchusa arvensis All of Region 2
camelthorn Alhagi maurorum All of Region 2
chervil wild Anthriscus sylvestris Region 2, except Guemes Island in Skagit County
cinquefoil, sulfur Potentilla recta Region 2 except Skagit County
cordgrass, smooth Spartina alterniflora Region 2 except Padilla Bay of Skagit County
cordgrass, common Spartina anglica Region 2 except bays and estuaries of Skagit and Island counties and except bays and estuaries north of Everett in Snohomish County
fanwort Cabomba caroliniana All of Region 2
fieldcress, Austrian Rorippa austriaca All of Region 2
floating heart, yellow Nymphoides peltata All of Region 2
gorse Ulex europaeus Skagit, Island, and Whatcom counties only
hawkweed, mouseear Hieracium pilosella All of Region 2
hawkweed, orange Hieracium aurantiacum Skagit County only
hawkweed, polar Hieracium atratum All of Region 2
hawkweed queen-devil Hieracium glomeratum All of Region 2
hawkweed, smooth Hieracium laevigatum San Juan, Island, and Skagit counties only
hawkweed, yellow Hieracium caespitosum All of Region 2
hedgeparsley Torilis arvensis All of Region 2
helmet, policeman's Impatiens gladulifera Region 2 except Whatcom County
indigobush Amorpha fruticosa All of Region 2
knapweed, black Centaurea nigra All of Region 2
knapweed, brown Centaurea jacea All of Region 2
knapweed, diffuse Centaurea diffusa All of Region 2
knapweed, meadow Centaurea jacea x nigra All of Region 2
knapweed, Russian Acroptilon repens All of Region 2
knapweed, spotted Centaurea biebersteinii All of Region 2
kochia Kochia scoparia All of Region 2
lepyrodiclis Lepyrodiclis holosteoides All of Region 2
loosestrife, garden Lysimachia vulgaris All of Region 2
loosestrife, purple Lythrum salicaria Region 2, except for Snohomish County
loosestrife, wand Lythrum virgatum Region 2, except for Snohomish County
nutsedge, yellow Cyperus esculentus All of Region 2
oxtongue, hawkweed Picris hieracioides All of Region 2
parrotfeather Myriophyllum aquaticum All of Region 2
pepperweed, perennial Lepidium latifolium All of Region 2
primrose, water Ludwigia hexapetala All of Region 2
puncturevine Tribulus terrestris Skagit County only
saltcedar Tamarix ramosissima All of Region 2
sandbur, longspine Cenchrus longispinus All of Region 2
skeletonweed, rush Chondrilla juncea All of Region 2
sowthistle, perennial Sonchus arvensis ssp. arvensis All of Region 2
spurge, leafy Euphorbia esula All of Region 2
starthistle, yellow Centaurea solstitialis All of Region 2
swainsonpea Sphaerophysa salsula All of Region 2
thistle, musk Carduus natans All of Region 2
thistle, plumeless Carduus acanthoides All of Region 2
thistle, Scotch Onopordum acanthium All of Region 2
toadflax, Damlatian Linaria dalmatica ssp. dalmatica All of Region 2

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