Laserfiche WebLink
APPENDIX A <br />Noxious Weed List, Top Ten Prioritized Species and Weeds of Concern for the <br />State of Colorado (DPI, 2002) <br />Eighty-two weeds are listed on the State of Colorado's Noxious Weed List. <br />State Noxious Weed List <br />1) <br />Absinth wormwood (Artemisia <br />34) <br />Hoary cress (Cardaris draba) <br />absinthium) <br />35) <br />Houndstongue (Cynoglossum officinale) <br />2) <br />African rue (Peganum harmala) <br />36) <br />Hydrilla (Hydrilla hydrilla) <br />3) <br />Black henbane (Hyoscyamus niger) <br />37) <br />Hohnsongrass (Sorghum halepense) <br />4) <br />Black nightshade (Solanum nigrum) <br />38) <br />Jointed goatgrass (Aegilops cylindrical) <br />5) <br />Blue mustard (Chorispora tenella) <br />39) <br />Kochia (Kochia scoparia) <br />6) <br />Bouncingbet (Saponaria officinalis) <br />40) <br />Leafy spurge (Euphorbia esula) <br />7) <br />Bull thistle (Cirsium vulgare) <br />41) <br />Mayweed chamomile (Anthemis cotula) <br />8) <br />Camelthorn (Alhagi pseudalhagi) <br />42) <br />Meadow knapweed (Centaurea pratensis) <br />9) <br />Canada thistle (Cirsium arvense) <br />43) <br />Mediterranean sage (Salvia aethiopis) <br />10) <br />Chicory (Chichorium intybus) <br />44) <br />Medusahead rye (Taeniatherum caput - <br />11) <br />Chinese clematis (Clematis orientalis) <br />medusae) <br />12) <br />Coast tarweed (Madia sativa) <br />45) <br />Moth mullein (Verbascaum blattaria) <br />13) <br />Common burdock (Arctium minus) <br />46) <br />Musk thistle (Carduus nutans) <br />14) <br />Common crupina (Crupina vulgaris) <br />47) <br />Myrtle spruge (Euphorbia myrsinites) <br />15) <br />Common groundsel (Senecio vulgaris) <br />48) <br />Orange hawkweed (Hieracium <br />16) <br />Common mullein (Verbascum Thapsus) <br />aurantiacum) <br />17) <br />Common St. Johnswort (Hypericum <br />49) <br />Oxeye daisy (Chrysanthemum <br />perforatum) <br />leucanthemum) <br />18) <br />Common tansy (Tanacetum vulgare) <br />50) <br />Perennial pepperweed (Lepidium <br />19) <br />Common teasel (Dipsacus fullonum) <br />latifolium) <br />20) <br />Cypress spruge (Euphorbia cyparissias) <br />51) <br />Perennial sowthistle (Sonchus arvensis) <br />21) <br />Calmation toadflax, broad-leaved (Linaria <br />52) <br />Plumeless Thistle (Carduus acanthoides) <br />dalmatica) <br />53) <br />Poison hemlock (Conium maculatum) <br />22) <br />Dalmation toadflax, narrow -leaved <br />54) <br />Puncturevine (Tribulus terrestris) <br />(Linaria genistifolia) <br />55) <br />Purple loosestrife (Lythrum salicaria) <br />23) <br />Dame's rocket (Hesperis matronalis) <br />56) <br />Quackgrass (Elytrigia repens) <br />24) <br />Diffuse knapweed (Centaurea diffusa) <br />57) <br />Redstem filaree (Erodium cicutarium) <br />25) <br />Downy Brome (Bromus tectorum) <br />58) <br />Rush skeletonweed (Chondrilla juncea) <br />26) <br />Dyer's woad (Isatis tinctoria) <br />59) <br />Russian knapweed (Centaurea repens) <br />27) <br />Eurasian watermilfoil (Myriophyllum <br />60) <br />Russian olive (elaeagnus angustifolia) <br />spicatum) <br />61) <br />Russian thistle (Salsola collina) <br />28) <br />Field bindweed (Convolvulus arvensis) <br />62) <br />Saltcedar (Tamarix ramosissima) <br />29) <br />Flixweed (Desccurainia Sophia) <br />63) <br />Scentless chamomile (anthemis arvensis) <br />30) <br />Giant salvinia (Salvinia molesta) <br />64) <br />Scotch thistle (Onopordum acanthium <br />31) <br />Green foxtail (Setaria viridis) <br />and O. tauricum) <br />32) <br />Hairy nightshade (Solanum sarrachoides) <br />65) <br />Sericea lespedeza (Lespedeza cuneate) <br />33) <br />Halogeton (Halogeton glomeratus) <br />66) <br />Shepherdspurse (Capsells bursa -pastoris) <br />5 <br />