Washington State Noxious Weed Control Board

Region 7 Class B Weed Designates

Region 7 contains all lands lying within the boundaries of:

Lincoln and Whitman counties
Spokane County and south of the Spokane River
Ranges 31E, 32E, 33E, 34E, 35E, 36E, 37E, and 38E of Adams County

Common name	Scientific name	Designated for control in:
alyssum, hoary	Berteroa incana	Adams and Whitman counties of Region 7
arrowhead, grass-leaved	Sagittaria graminea	All of Region 7
blackgrass	Alopecurus myosuroides	Adams County only
blueweed	Echium vulgare	Region 7, except for an area starting: at the Stevens County line on SR 291 south to the SR 291 bridge over the Little Spokane River, then upstream along the Little Spokane River to the first Rutter Parkway Bridge, then south along the Rutter Parkway to the intersection of Rutter Parkway and Indian Trail Road, then southerly along Indian Trail Road to a point three miles south (on section line between sections 22 and 27, T-26N, R-42E), then due west to a point intersecting the line between Ranges 41 and 42, then north along this line to a point 1/4 mile south of Charles Road, then northwesterly parallel to Charles Road to a point 1/4 miles south of the intersection of Charles Road and West Shore Road, then northerly along West Shore Road to the Spokane River (Long Lake), then southeasterly along the Spokane River to the point of beginning
broom, Scotch	Cytisus scoparius	All of Region 7
bryony, white	Byronia alba	Region 7, except Whitman County
bugloss, common	Anchusa officinalis	Lincoln, Adams, and Whitman counties only
bugloss, annual	Anchusa arvensis	Lincoln and Adams counties Whitman County except Ranges 43 - 46 East of Townships 16 - 20 North
camelthorn	Alhagi maurorum	All of Region 7
carrot, wild	Daucus carota	Region 7 (except where intentionally cultivated)
catsear, common	Hypochaeris radicata	All of Region 7
chervil, wild	Anthriscus sylvestris	All of Region 7
cinquefoil, sulfur	Potentilla recta	Region 7, except for Spokane County
cordgrass, smooth	Spartina alterniflora	All of Region 7
cordgrass, common	Spartina anglica	All of Region 7
daisy, oxeye	Leucanthemum vulgare	All of Region 7
elodea, Brazilian	Egeria densa	All of Region 7
fanwort	Cabomba caroliniana	All of Region 7
fieldcress, Austrian	Rorippa austriaca	Regions 7 and 10, except within the Palouse River Canyon from Big Palouse Falls to the Snake River
floating heart, yellow	Nymphoides peltata	All of Region 7
gorse	Ulex europaeus	All of Region 7
hawkweed, mouseear	Hieracium pilosella	All of Region 7
hawkweed, orange	Hieracium aurantiacum	Lincoln and Adams counties only
hawkweed, polar	Hieracium atratum	All of Region 7
hawkweed queen-devil	Hieracium glomeratum	All of Region 7
hawkweed, smooth	Hieracium laevigatum	All of Region 7
hawkweed, yellow	Hieracium caespitosum	All of Region 7
hedgeparsley	Torilis arvensis	All of Region 7
helmet, policeman's	Impatiens gladulifera	All of Region 7
herb-Robert	Geranium robertianum	All of Region 7
indigobush	Amorpha fruticosa	Regions 7 and 10, except within 200 feet of the Snake River from Central Ferry downstream
knapweed, black	Centaurea nigra	All of Region 7
knapweed, brown	Centaurea jacea	All of Region 7
knapweed, diffuse	Centaurea diffusa	Adams County, except those areas within: T15N, R36E, Section 36 T15N, R37E, Sections 22, 26, 27, 28, 31, 32, 33, and 34 T15N, R37E, western half of Sections 23, 24, and 25 T15Nm R38E, Sections 2, 10, 11, 14, 15, 19, and 20 T16N, R38E, Sections 34 and 35 T17N, R37E, Sections 5 and 6
knapweed, meadow	Centaurea jacea x nigra	All of Region 7
knapweed, Russian	Acroptilon repens	All of Region 7
knapweed, spotted	Centaurea biebersteinii	Adams and Whitman counties only
lepyrodiclis	Lepyrodiclis holosteoides	Region 7, except an area within Whitman County: east of the Pullman-Wawawai Road from Wawawai to Pullman and south of State Highway 270 from Pullman to Moscow, Idaho
loosestrife, garden	Lysimachia vulgaris	All of Region 7
loosestrife, purple	Lythrum salicaria	All of Region 7
loosestrife, wand	Lythrum virgatum	All of Region 7
nutsedge, yellow	Cyperus esculentus	All of Region 7
oxtongue, hawkweed	Picris hieracioides	All of Region 7
parrotfeather	Myriophyllum aquaticum	All of Region 7
pepperweed, perennial	Lepidium latifolium	All of Region 7
primrose, water	Ludwigia hexapetala	All of Region 7
puncturevine	Tribulus terrestris	Adams County
ragwort, tansy	Senecio jacobaea	All of Region 7
saltcedar	Tamarix ramosissima	All of Region 7, unless intentionally established prior to 2004
sandbur, longspine	Cenchrus longispinus	All of Region 7
skeletonweed, rush	Chondrilla juncea	Adams County, except those areas lying: east of a line running north from Franklin County along the western boundary of Range 36 East to State Highway 26, then north on Sage Road until it intersects Lee Road, then due north until intersection with Providence Road , then east to State Highway 261, then north along State Highway 261 to its intersection with Interstate 90, henceforth on a due north line to intersection with Bauman Road, then north along Bauman Road to its terminus, then due north to the Lincoln County line Whitman County lying in: Ranges 43-46, East of Townships 15-20 North T14N, Ranges 44-46 East T13N, Ranges 45 and 46 East
sowthistle, perennial	Sonchus arvensis ssp. arvensis	All of Region 7
spurge, leafy	Euphorbia esula	Region 7, except In Lincoln County: T27N, R37E, Sections 34,35,36 T27N, R38E, Sections 31, 32, 33 T26N, R37E, Sections 1,2,3, 10-16, 26 T26N, R38E, Sections 5-8 In Spokane County: T24N, R43E, Section 12, Qtr. Section 3, Parcel No. 9068
starthistle, yellow	Centaurea solstitialis	Region 7, except those areas within Whitman County: lying south of State Highway 26 from the Adams County line to Colfax, and south of State Highway 195 from Colfax to Pullman, and south of State Highway 270 from Pullman to the Idaho border
swainsonpea	Sphaerophysa salsula	All of Region 7
thistle, musk	Carduus natans	All of Region 7
thistle, plumeless	Carduus acanthoides	All of Region 7
thistle, Scotch	Onopordum acanthium	Region 7, except those areas within Whitman County: lying south of State Highway 26 from the Adams County line to Colfax, and south of State Highway 195 from Colfax to Pullman, and south of State Highway 270 from Pullman to the Idaho border
toadflax, Damlatian	Linaria dalmatica ssp. dalmatica	Lincoln and Adams Counties The western two miles of Spokane County of Region 7
watermilfoil, Eurasian	Myriophyllum spicatum	Region 7, except Spokane County