1. A. In addition to the noxious weeds prohibited in the “Federal Seed Act” a person shall not allow Class A, B, or C prohibited noxious weed seeds in seed regulated under this Article as prescribed under the provisions of R3-4-245:

   1. 1. Acroptilon repens (L.) DC. – Russian knapweed;
   2. 2. Aegilops cylindrica Host. – Jointed goatgrass;
   3. 3. Ailanthus altissima – Tree of heaven;
   4. 4. Alhagi maurorum – Camelthorn;
   5. 5. Arundo donax – Giant reed;
   6. 6. Asphodelus fistulosus – Onionweed;
   7. 7. Bothriochloa ischaemum – Yellow bluestem;
   8. 8. Brassica nigra – Black mustard;
   9. 9. Brassica tournefortii – Saharan mustard;
   10. 10. Bromus diandrus – Ripgut brome;
   11. 11. Bromus rubens – Red brome
   12. 12. Bromus tectorum – Cheatgrass
   13. 13. Carduus acanthoides L. – Plumeless thistle;
   14. 14. Cardus nutans – Musk thistle;
   15. 15. Carrichtera annua – Ward’s weed;
   16. 16. Cenchrus cilaris (Pennisetum ciliare) – Buffelgrass;
   17. 17. Cenchrus echinatus L. – Southern sandbur;
   18. 18. Cenchrus spinifex (C. incertus) – Field sandbur;
   19. 19. Centaurea calcitrapa L. – Purple starthistle;
   20. 20. Centaurea diffusa – Diffuse knapweed;
   21. 21. Centaurea melitensis – Malta starthistle;
   22. 22. Centaurea solstitialis L. – Yellow starthistle (St. Barnaby’s thistle);
   23. 23. Centaurea stoebe (C. maculosa). – Spotted knapweed;
   24. 24. Chondrilla juncea L. – Rush skeletonweed;
   25. 25. Cirsium arvense L. Scop. – Canada thistle;
   26. 26. Cirisium vulgare – Bull thistle;
   27. 27. Convolvulus arvensis L. – Field bindweed;
   28. 28. Cucumis melo L. var. Dudaim Naudin – Dudaim melon (Queen Anne’s melon);
   29. 29. Eichornia crassipes – Floating water hyacinth;
   30. 30. Elaeagnus angustifolia – Russian olive;
   31. 31. Elymus repens – Quackgrass;
   32. 32. Eragrostis lehmanniana – Lehman’s lovegrass;
   33. 33. Euphorbia esula L. – Leafy spurge;
   34. 34. Euryops subcarnosus – Sweet resinbush;
   35. 35. Halogeton glomeratus (M. Bieb.) C.A. Mey – Halogeton;
   36. 36. Hydrilla verticillata (L.f.) Royle – Hydrilla (Florida-elodea);
   37. 37. Ipomoea hederacea – Ivy-leaf mrning glory;
   38. 38. Ipomoea purpurea – Garden or common morning glory;
   39. 39. Ipomoea tricolor – Grannyvine;
   40. 40. Ipomoea triloba – Morning glory;
   41. 41. Ipomoea x leucantha – Morning glory;
   42. 42. Isatis tinctoria L. – Dyers woad;
   43. 43. Kochia scoparia – Kochia;
   44. 44. Lepidium draba (Crdaria draba) – Globed-podded hoary cress (Whitetop);
   45. 45. Linaria dalmatica (L. genistifolia var. dalmatica) – Dalmation toadflax;
   46. 46. Lythrum salicaria L. – Purple loosestrife;
   47. 47. Melinis repens – Natal grass;
   48. 48. Oncosiphon pilulifer (O. piluliferum) – Stinknet (Globe chamomile);
   49. 49. Onopordum acanthium L. – Scotch thistle;
   50. 50. Orobanche ramosa L. – Branched broomrape;
   51. 51. Peganum harmala L. – African rue (Syrian rue);
   52. 52. Pennisetum setaceum – Fountain grass;
   53. 53. Searsia lancea – African sumac;
   54. 54. Salvinia molesta – Giant Salvinia;
   55. 55. Sinapis arvensis – Wild mustard;
   56. 56. Sorghum halepense – Johnsongrass;
   57. 57. Tamarix spp. – Salt cedar
   58. 58. Tribulus terrestris L. – Puncturevine;
   59. 59. Ulmus pumila – Siberian elm.

2. B. A person shall not allow the following restricted noxious weeds, as a contaminant, in certified or registered seed:

   1. 1. Amaranthus spp. – Pigweeds;
   2. 2. Avena fatua – Wild oat;
   3. 3. Brassica spp. – Cabbage and mustards;
   4. 4. Cenchrus spp. – Sandburs;
   5. 5. Centaurea spp. – Thistles;
   6. 6. Cuscuta spp. – Dodder;
   7. 7. Cyperus spp. – Sedges;
   8. 8. Ipomoea spp. – Morning glories;
   9. 9. Lepidium spp. – Cresses and worts;
   10. 10. Medicago spp. – Burclovers;
   11. 11. Nassella spp. – Needlegrasses;
   12. 12. Poa annua – Annual bluegrass;
   13. 13. Salsola kali var. tenuifolia – Russian thistle;
   14. 14. Solanum spp. – Niteshades;
   15. 15. Xanthium spp. – Cockleburs.

Historical Note

Adopted effective December 21, 1981 (Supp. 81-6). Former Section R3-4-112 renumbered without change as Section R3-4-403 (Supp. 89-1). Section R3-4-403 renumbered from R3-1-403 (Supp. 91-4). Section R3-4-403 repealed, new Section R3-4-403 renumbered from R3-4-405 and amended effective July 10, 1995 (Supp. 95-3). Amended by final rulemaking at 13 A.A.R. 1464, effective June 2, 2007 (Supp. 07-2). Amended by final rulemaking at 29 A.A.R. 3932 (December 29, 2023), effective February 4, 2024 (Supp. 23-4).