WAC 16-750-015. State noxious weed list — Class C noxious weeds

Common Name Scientific Name absinth wormwood Artemisia absinthium Austrian fieldcress Rorippa austriaca babysbreath Gypsophila paniculata beach grass, European, American, and hybrids Ammophila arenaria, A. breviligulata , and A. arenaria x breviligulata black henbane Hyoscyamus niger blackberry, evergreen Rubus laciniatus blackberry, Himalayan Rubus bifrons blackgrass Alopecurus myosuroides black locust Robinia pseudoacacia buffalobur Solanum rostratum cereal rye Secale cereale common barberry Berberis vulgaris common catsear Hypochaeris radicata common groundsel Senecio vulgaris common holly Ilex aquifolium, except where commercially grown common St. Johnswort Hypericum perforatum common teasel Dipsacus fullonum curly-leaf pondweed Potamogeton crispus English hawthorn Crataegus monogyna English ivy 4 cultivars only: Hedera hibernica 'Hibernica' Hedera helix 'Baltica' Hedera helix 'Pittsburgh' Hedera helix 'Star' Eurasian watermilfoil hybrid Myriophyllum spicatum x M. sibiricum field bindweed Convolvulus arvensis fragrant water lily Nymphaea odorata green alkanet Pentaglottis sempervirens hairy whitetop Lepidium appelianum hoary cress Lepidium draba Italian arum Arum italicum Japanese eelgrass Nanozostera japonica jointed goatgrass Aegilops cylindrica jubata grass Cortaderia jubata lawnweed Soliva sessilis longspine sandbur Cenchrus longispinus Medusahead Taeniatherum caput-medusae nonnative cattail species and hybrids Including, but not limited to, Typha angustifolia, T. domingensis and T. x glauca Norway maple Acer platanoides old man's beard Clematis vitalba oxeye daisy Leucanthemum vulgare pampas grass Cortaderia selloana perennial sowthistle Sonchus arvensis ssp. arvensis reed canarygrass Phalaris arundinacea Russian olive Elaeagnus angustifolia scentless mayweed Tripleurospermum inodorum smoothseed alfalfa dodder Cuscuta approximata spikeweed Centromadia pungens spiny cocklebur Xanthium spinosum spotted jewelweed Impatiens capensis Swainsonpea Sphaerophysa salsula thistle, bull Cirsium vulgare thistle, Canada Cirsium arvense tree-of-heaven Ailanthus altissima ventenata Ventenata dubia white cockle Silene latifolia wild carrot (except subs. sativus where grown commercially or for food) Daucus carota yellow flag iris Iris pseudacorus yellow toadflax Linaria vulgaris Common Name Scientific Name absinth wormwood Artemisia absinthium Austrian fieldcress Rorippa austriaca babysbreath Gypsophila paniculata beach grass, European, American, and hybrids Ammophila arenaria, A. breviligulata , and A. arenaria x breviligulata black henbane Hyoscyamus niger blackberry, evergreen Rubus laciniatus blackberry, Himalayan Rubus bifrons blackgrass Alopecurus myosuroides black locust Robinia pseudoacacia buffalobur Solanum rostratum cereal rye Secale cereale common barberry Berberis vulgaris common catsear Hypochaeris radicata common groundsel Senecio vulgaris common holly Ilex aquifolium, except where commercially grown common St. Johnswort Hypericum perforatum common teasel Dipsacus fullonum curly-leaf pondweed Potamogeton crispus English hawthorn Crataegus monogyna English ivy 4 cultivars only: Hedera hibernica 'Hibernica' Hedera helix 'Baltica' Hedera helix 'Pittsburgh' Hedera helix 'Star' Eurasian watermilfoil hybrid Myriophyllum spicatum x M. sibiricum field bindweed Convolvulus arvensis fragrant water lily Nymphaea odorata green alkanet Pentaglottis sempervirens hairy whitetop Lepidium appelianum hoary cress Lepidium draba Italian arum Arum italicum Japanese eelgrass Nanozostera japonica jointed goatgrass Aegilops cylindrica jubata grass Cortaderia jubata lawnweed Soliva sessilis longspine sandbur Cenchrus longispinus Medusahead Taeniatherum caput-medusae nonnative cattail species and hybrids Including, but not limited to, Typha angustifolia, T. domingensis and T. x glauca Norway maple Acer platanoides old man's beard Clematis vitalba oxeye daisy Leucanthemum vulgare pampas grass Cortaderia selloana perennial sowthistle Sonchus arvensis ssp. arvensis reed canarygrass Phalaris arundinacea Russian olive Elaeagnus angustifolia scentless mayweed Tripleurospermum inodorum smoothseed alfalfa dodder Cuscuta approximata spikeweed Centromadia pungens spiny cocklebur Xanthium spinosum spotted jewelweed Impatiens capensis Swainsonpea Sphaerophysa salsula thistle, bull Cirsium vulgare thistle, Canada Cirsium arvense tree-of-heaven Ailanthus altissima ventenata Ventenata dubia white cockle Silene latifolia wild carrot (except subs. sativus where grown commercially or for food) Daucus carota yellow flag iris Iris pseudacorus yellow toadflax Linaria vulgaris