NAISMA PROHIBITED WEED LIST In order for a field to be certified as weed free, the following species cannot be present unless the field upon which the forage was produced is treated to prevent seed or other propagule viability; or if none of these species is in either the budding or bloom growth stage. Restricted Species Common in Kansas Buffalobur Solanum rostratum Bur ragweed* Ambrosia grayii Canada thistle* Cirsium arvense Common burdock Arctium minus Common mullein Verbascum thapsus Common teasel Dipsacus fullonum Cutleaf teasel Dipsacus laciniatus Dalmatian toadflax Linaria dalmatica Diffuse knapweed Centaurea diffusa Field bindweed* Convolvulus arvensis Hoary cress* Lepidium draba Horsenettle Solanum carolinense Johnsongrass* Sorghum halepense Jointed goatgrass Aegilops cylindrica Kudzu* Pueraria montana var. Lobata Leafy spurge* Euphorbia virgate Musk thistle* Carduus nutans Oxeye daisy Chrysanthemum leucanthemum Pignut Hoffmannseggia densiflora Poison hemlock Conium maculatum Puncturevine Tribulus terrestris Purple loosestrife Lythrum salicaria Quackgrass* Agropyron repens Russian knapweed* Centaurea repens Scotch thistle Onopordum acanthium Sericea lespedeza* Lespedeza cuneata Spotted knapweed Centaurea maculosa St. Johnswort Hypericum perforatum Sulfur cinquefoil Potentilia recta Wild oats Avena fatua Yellow toadflax Linaria vulgaris *Kansas Noxious Weeds Other Restricted Species Absinth wormwood Artemisia absinthium Austrian fieldcress Rorippa austriaca Black henbane Hyoscyamus niger Common crupina Crupina vulgaris Common tansy Tanacetum vulgare Dame’s rocket Hesperis matronalis Dyers woad Isatis tinctoria Field scabious Knautia arvensis Hoary alyssum Berteroa incana Houndstongue Cynoglossum officinale Meadow knapweed Centaurea pratensis Medusahead Taeniatherum caput-medusae Orange hawkweed Hieracium aurantiacum Perennial pepperweed Lepidium latifolium Perennial sowthistle Sonchus arvensis Plumeless thistle Carduus acanthoides Rush skeletonweed Chondrilla juncea Scentless chamomile Matricaria perforata or M. milaceum Squarrose knapweed Centaurea virgata Tall buttercup Ranunculus acris Tansy ragwort Senecio jacobaea Vipers bugloss/blueweed Echium vulgare Wild proso millet Panicum miliaceum Yellow hawkweed Hieracium pratense Yellow starthistle Centaurea solstitialis .