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Region 9 Class B Weed Designates

Region 9 contains all lands lying within the boundaries of:

  • Benton and Klickitat counties
  • Yakima County and south of Highway 12 from the Yakima-Lewis County line to Yakima and south of Highway 82 from Yakima to the Yakima-Kittitas County line
  • Franklin County and west of Highway 395
Common name Scientific name Designated for control in:
alyssum, hoary Berteroa incana All of Region 9
arrowhead, grass-leaved Sagittaria graminea All of Region 9
blackgrass Alopecurus myosuroides All of Region 9
blueweed Echium vulgare All of Region 9
broom, Scotch Cytisus scoparius All of Region 9
bryony, white Byronia alba All of Region 9
bugloss, common Anchusa officinalis All of Region 9
bugloss, annual Anchusa arvensis All of Region 9
camelthorn Alhagi maurorum All of Region 9
carrot, wild Daucus carota Region 9, except Yakima County (except where intentionally cultivated)
catsear, common Hypochaeris radicata Region 9, except for Klickitat County
chervil, wild Anthriscus sylvestris All of Region 9
cinquefoil, sulfur Potentilla recta Region 9, except for Klickitat County
cordgrass, smooth Spartina alterniflora All of Region 9
cordgrass, common Spartina anglica All of Region 9
daisy, oxeye Leucanthemum vulgare Region 9, except those areas lying within Klickitat and Yakima counties west of Range 13 East
elodea, Brazilian Egeria densa All of Region 9
fanwort Cabomba caroliniana All of Region 9
fieldcress, Austrian Rorippa austriaca All of Region 9
floating heart, yellow Nymphoides peltata All of Region 9
gorse Ulex europaeus All of Region 9
hawkweed, mouseear Hieracium pilosella All of Region 9
hawkweed, orange Hieracium aurantiacum All of Region 9
hawkweed, polar Hieracium atratum All of Region 9
hawkweed queen-devil Hieracium glomeratum All of Region 9
hawkweed, smooth Hieracium laevigatum All of Region 9
hawkweed, yellow Hieracium caespitosum Region 9, except the following sections in Klickitat County:
  • sections 32, 33, and 34 of T6N, R12E
  • sections 4,5, 6, and 7 of T5N, R12E
  • section 12 of T5N, R11E

 
hedgeparsley Torilis arvensis Yakima, Benton, Franklin counties

Klickitat County, except those lands lying within:

  • T4N, R10E, R11E, R12E, R13E, R14E
  • T3N, R10E, R11E, R12E, R13E
  • T2N, R12E, R13E
helmet, policeman's Impatiens gladulifera All of Region 9
herb-Robert Geranium robertianum All of Region 9
indigobush Amorpha fruticosa Region 9, except within 200 feet of the Columbia River
knapweed, black Centaurea nigra All of Region 9
knapweed, brown Centaurea jacea All of Region 9
knapweed, diffuse Centaurea diffusa Franklin County of Region 9
knapweed, meadow Centaurea jacea x nigra All of Region 9
knapweed, spotted Centaurea biebersteinii All of Region 9
lepyrodiclis Lepyrodiclis holosteoides All of Region 9
loosestrife, garden Lysimachia vulgaris All of Region 9
loosestrife, purple Lythrum salicaria Region 9, except Benton County
loosestrife, wand Lythrum virgatum Region 9, except Benton County
nutsedge, yellow Cyperus esculentus Region 9, except those areas lying within the following boundary description within Yakima County:
  • beginning at the intersection of Highway 12 and Parker Heights Road, and
  • continuing easterly to Konnowac Pass Road,
  • follow said road north to the intersection of Konnowac Pass Road, and Nightingale Road
  • The northern boundary shall be the Roza Canal, continuing from the established point at Nightingale Road
  • The boundaries will follow the Roza Canal easterly to the County Line Road.
  • The east boundaries will be the Yakima/Benton County Line from a point beginning at the County Line and Highway 22 (near Byron),
  • continuing westerly along Highway 22 (to near the city of Mabton) to the intersection of Highway 22 and the Reservation Boundary (Division Road), and
  • continuing north to the Yakima River.
  • Then it will follow the river northwest to the Wapato-Donald Road,
  • continuing north along said road to Highway 12, then
  • Highway 12 to Parker Heights Road, and

An area lying southerly of State Route 14 and within T2N, Ranges 13 and 14, east of Klickitat County

 
oxtongue, hawkweed Picris hieracioides All of Region 9
parrotfeather Myriophyllum aquaticum All of Region 9
primrose, water Ludwigia hexapetala All of Region 9
ragwort, tansy Senecio jacobaea All of Region 9
saltcedar Tamarix ramosissima Region 9, except Benton and Franklin counties (unless intentionally established prior to 2004)
skeletonweed, rush Chondrilla juncea All of Region 9

Franklin County, except T13N, R36E, and T14N, R36E
sowthistle, perennial Sonchus arvensis ssp. arvensis All of Region 9
spurge, leafy Euphorbia esula All of Region 9
starthistle, yellow Centaurea solstitialis Franklin County

Region 9, except Klickitat County
swainsonpea Sphaerophysa salsula Franklin County
thistle, musk Carduus natans All of Region 9
thistle, plumeless Carduus acanthoides All of Region 9
thistle, Scotch Onopordum acanthium All of Region 9
toadflax, Damlatian Linaria dalmatica ssp. dalmatica Region 9, except those areas lying:
  • within Yakima County
  • west of the Klickitat River and within Klickitat County
watermilfoil, Eurasian Myriophyllum spicatum All of Region 9