Class "C" Noxious Weeds
Are selected by the County Board of Directors. These weeds which are already widespread in Washington state are of special interest to the state's agricultural industry.
typically common and widespread, control of these plants is determined on a case-by-case basis.
Class "C" noxious weeds found in Benton County are shown below. If you click on the image a larger image will be displayed. If you click on "*details*" the link will take you to the Washington State Noxious Weed Control Board website's description of the plant.
baby's breath, Gypsophila paniculata details
buffalobur, Solanum rostratum details
cereal rye, Secale cereale details
hairy whitetop, Lepidium appelianum details
hoary cress, Lepidium draba details
jointed goatgrass, Aegilops cylindrica details
longspine sandbur, Cenchrus longispinus details
pampas grass, Cortaderia selloana details
reed canarygrass, Phalaris arundinacea details
spikeweed, Centromadia pungens details
bull thistle, Cirsium vulgare details
Canada thistle, Cirsium arvense details
yellow flag iris, Iris pseudacorus details