NOXIOUS WEEDS: Any exotic plant species that may render land unfit for agriculture, forestry, livestock, wildlife or other beneficial uses, or that may harm native plant communities.
Priority 2B: Priority 2B is defined as noxious weeds that are currently established and are generally widespread in many counties of the State. Management criteria include awareness and education, containment and suppression of existing infestations and prevention of new infestations. These weeds are capable of rapid spread and render land unfit or greatly limit beneficial uses.
Canada thistle | (Cirsium arvense) |
Common tansy | (Tanacetum vulgare) |
Curlyleaf pondweed | (Potamogeton crispus) |
Dalmation toadflax | (Linaria dalmatica) |
Diffuse knapweed | (Centaurea diffusa) |
Field bindweed | (Convolvuvlus arvensis) |
Hoary alyssum | (Berteroa incana) |
Hound's tongue | (Cynoglossum officinale) |
Leafy spurge | (Euphorbia esula) |
Oxeye daisy | (Chrysanthemum leucanthemum) |
Russian knapweed | (Centaurea maculosa) |
St. Johnswort | (Hypericum perforatum) |
Saltcedar | (Tamarix spp.) |
Spotted knapweed | (Centaurea repens) |
Sulfur cinquefoil | (Potentilla recta) |
Whitetop or hoary cress | (Cardaria draba) |
Yellow Toadflax | (Linaria vulgaris) |
Priority 2A: Priority 2A is defined as noxious weeds that have recently been introduced into the State or are rapidly spreading from their current infestation sites. These weeds are capable of rapid spread and invasion of lands, rendering lands unfit for beneficial uses. Management criteria include awareness and education, monitoring, and containment of known infestations and eradication where possible.
Baby's breath | (Gypsophila paniculata) |
Common buckthorn | (Rhamnuscathartica L.) |
Eurasian watermilfoil | (Myriophyllum spicatum, Myriophyllum spicatum x Myriophullum sibiricum) |
Flowering rush | (Butomus umbellatus) |
Meadow hawkweed complex | (Hieracium pratense, H. floribundum, H. piloselloides) |
Orange hawkweed | (Hieracium aurantiacum) |
Perennial pepperweed | (Lepidium latifolium) |
Russian thistle | (Salsola tragus) |
Tall buttercup | (Ranunculus acris) |
Tansy ragwort | (Senecio jacobaea) |
Tumble mustard | (Sisymbrium altissimum) |
White campion | (Silene latifolia) |
Yellow flag iris | (Iris pseudacorus) |
Priority 1B: Priority 1B is defined as noxious weeds that have not been detected in the State or may be found only in small, scattered, localized infestations. Management criteria include awareness and education, early detection and immediate action to eradicate infestations. These weeds are known pests in nearby states and are capable of rapid spread.
Blueweed | (Echium vulgare) |
Knotweed complex | (Polygonum cuspidatum, P. sachalinense P. x bohemicum, Fallopia japonica, F. sachalinensis, F. x bohemica, Reynoutria japonica, R. sachalinensis, and R. x bohemica) |
Purple loosestrife | (Lythrum salicaria) |
Rush skeletonweed | (Chondrilla juncea) |
Scotch broom | (Cytisusscoparius) |
Priority 1A: Not a high priority for treatment but can get out of control if not watched.
Common reed | (Phragmites australis ssp. australis) |
Dyer's woad | (Isatis tinctoria) |
Medusahead | (Taeniatherum caput-medusae) |
Yellow starthistle | (Centaurea solstitialis) |
(Ord. 19-17, 7-15-2019)