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Appendix A <br /> Colorado Noxious Weeds (including Watch List), effective March 31, 2017 <br /> List A Species (25) <br /> Common Scientific <br /> African rue (Peganum harmala) <br /> Bohemian knotweed (Polygonum x bohemicum) <br /> Camelthorn (Alhogi mourorum) <br /> Common crupina (Crupina vulgoris) <br /> Cypress spurge (Euphorbiacyporissias) <br /> Dyer's woad (Isatis tinctoria) <br /> Elongated mustard (Brossica elongata) <br /> Flowering rush (Butomus umbellatus) <br /> Giant knotweed (Polygonum sachalinense) <br /> Giant reed (Arundo donax) <br /> Giant salvinia (Salvinia molesta) <br /> Hairy willow-herb (Epilobium hirsutum) <br /> Hydrilla (Hydrilla verticillota) <br /> Japanese knotweed (Polygonum cuspidatum) <br /> Meadow knapweed (Centaurea nigrescens) <br /> Mediterranean sage (Salvia oethiopis) <br /> Medusahead (Taeniatherum caput-medusae) <br /> Myrtle spurge (Euphorbiamyrsinites) <br /> Orange hawkweed (Hieracium aurantiacum) <br /> Parrotfeather (Myriophyllum aquaticum) <br /> Purple loosestrife (Lythrumsalicario) <br /> Rush skeletonweed (Chondrillo juncea) <br /> Squarrose knapweed (Centaurea virgata) <br /> Tansy ragwort (Senecio jocobaea) <br /> Yellow starthistle (Centaureasolstitialis) <br /> List 8 Species (40) <br /> Common Scientific <br /> Absinth wormwood (Artemisia absinthium) <br /> Black henbane (Hyoscyamus niger) <br /> Bull thistle (Cirsium vulgare) <br /> Bouncingbet (Saponaria officinalis) <br /> Canada thistle (Cirsium arvense) <br /> Chinese clematis (Clematis orientalis) <br /> Common tansy (Tonacetum vulgare) <br /> Common teasel (Dipsacus fullonum) <br /> Corn chamomile (Anthemis orvensis) <br /> Cutleaf teasel (Dipsacus laciniatus) <br /> Dalmatian toadflax,broad-leaved (Linaria dalmatica) <br /> Dalmatian toadflax, narrow-leaved (Linaria genistifolia) <br /> Dame's rocket (Hesperis matronalis) <br /> Diffuse knapweed (Centaurea diffusa) <br />