White Bryony
Links are to the Washington State Noxious Weed Control Board website Class C weed pages or to the Franklin County Noxious Weed Control Board's printable information packet for that weed.
Common Name

Scientific Name
Class C Weeds

Gypsophila paniculata

Solanum rostratum
Bull thistle
Cirsium vulgare
Canada thistle
Cirsium arvense
Cereal rye

Secale cereale
Common St. Johnswort

Hypericum perforatum

Field bindweed

Convolvulus arvensis
Hairy whitetop

Lepidium appelianum
Hoary cress

Lepidium draba
Jointed goatgrass

Aegilops cylindrica
Longspine sandbur

Cenchrus longispinus
Reed canarygrass

Phalaris arundinacea

Centromadia pungens
Yellowflag iris

Iris pseudacorus

Bold indicates a known presence in Franklin County.

Class C weeds are non-native weeds.  Many of these species are widespread.  Long-term programs of suppression and control are a local option, depending upon local threats and the feasibility of control in local areas.

class c weeds

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