Section R3-4-403. Noxious Weed Seeds

A.      A person shall not allow the following prohibited noxious weed seeds in seed regulated under this Article:

1.        Acroptilon repens (L.) DC. – Russian knapweed;

2.        Aegilops cylindrica Host. – Jointed goatgrass;

3.        Alhagi maurorum – Camelthorn;

4.        Alternanthera philoxeroides (Mart.) Griseb. – Alligator weed;

5.        Cardaria  pubescens  (C.A.  Mey)  Jarmolenko   –  Hairy whitetop;

6.        Cardaria  chalepensis  (L.)  Hand-Maz  –   Lens  podded hoary cress;

7.        Cardaria draba (L.) Desv. – Globed-podded hoary cress (Whitetop);

8.        Carduus acanthoides L. – Plumeless thistle;

9.        Cenchrus echinatus L. – Southern sandbur;

10.     Cenchrus incertus M.A. Curtis – Field sandbur;

11.     Centaurea calcitrapa L. – Purple starthistle;

12.     Centaurea iberica Trev. ex Spreng. – Iberian starthistle;

13.     Centaurea squarrosa Willd. – Squarrose knapweed;

14.     Centaurea sulphurea L. – Sicilian starthistle;

15.     Centaurea solstitialis L. – Yellow starthistle (St. Barn- aby’s thistle);

16.     Centaurea diffusa L. – Diffuse knapweed;

17.     Centaurea maculosa L. – Spotted knapweed;

18.     Chondrilla juncea L. – Rush skeletonweed;

19.     Cirsium arvense L. Scop. – Canada thistle;

20.     Convolvulus arvensis L. – Field bindweed;

21.     Coronopus squamatus (Forskal) Ascherson – Creeping wartcress (Coronopus);

22.     Cucumis melo L. var. Dudaim Naudin – Dudaim melon (Queen Anne’s melon);

23.     Cuscuta spp. – Dodder;

24.     Cyperus rotundus – Purple Nutgrass or Nutsedge;

25.     Cyperus esculentus – Yellow Nutgrass or Nutsedge;

26.     Drymaria arenarioides H.B.K. – Alfombrilla (Lightnin- gweed);

27.     Eichhornia azurea (SW) Kunth. – Anchored Waterhya- cinth;

28.     Elymus repens – Quackgrass;

29.     Euphorbia esula L. – Leafy spurge;

30.     Halogeton glomeratus (M. Bieb.) C.A. Mey – Halogeton;

31.     Helianthus ciliaris DC. – Texas Blueweed;

32.     Hydrilla verticillata (L.f.) Royle – Hydrilla (Florida-elo- dea);

33.     Ipomoea spp. – Morning glory. All species except Ipo- moea carnea, Mexican bush morning glory; Ipomoea tri- loba, three-lobed morning glory (which is considered a restricted pest); Ipomoea aborescens, morning glory tree; Ipomea batatas –  sweetpotato; Ipomoea  quamoclit, Cypress Vine; Ipomoea noctiflora, Moonflower – Morn- ing Glories, Cardinal Climber, Hearts and Honey Vine;

34.     Isatis tinctoria L. – Dyers woad;

35.     Linaria genistifolia var. dalmatica – Dalmation toadflax;

36.     Lythrum salicaria L. – Purple loosestrife;

37.     Medicago polymorpha L. – Burclover;

38.     Nassella trichotoma (Nees.) Hack. – Serrated tussock;

39.     Onopordum acanthium L. – Scotch thistle;

40.     Orobanche ramosa L. – Branched broomrape;

41.     Panicum repens L. – Torpedo grass;

42.     Peganum harmala L. – African rue (Syrian rue);

43.     Portulaca oleracea L. – Common purslane;

44.     Rorippa austriaca (Crantz.) Bess. – Austrian fieldcress;

45.     Salvinia molesta – Giant Salvinia;

46.     Senecio jacobaea L. – Tansy ragwort;

47.     Solanum carolinense – Carolina horsenettle;

48.     Solanum elaegnifolium – Silverleaf Nightshade;

49.     Sonchus arvensis L. – Perennial sowthistle;

50.     Solanum viarum Dunal – Tropical Soda Apple;

51.     Sorghum species, perennial (Sorghum halepense, John- son grass, Sorghum almum, and perennial sweet sudan- grass);

52.     Stipa brachychaeta Godr. – Puna grass;

53.     Striga spp. – Witchweed;

54.     Trapa natans L. – Water-chestnut;

55.     Tribulus terrestris L. – Puncturevine.

B.       A person shall not allow more than the number shown of the following restricted noxious weed seeds in a working sample of seed regulated by this Article; or, any more than 50 of any

combination of the following restricted noxious weed seeds per working sample.

1.        Avena fatua – Wild oat: 5;

2.        Brassica campestris – Bird rape: 30;

3.        Brassica juncea – Indian mustard: 30;

4.        Brassica niger – Black mustard: 30;

5.        Brassica rapa – Field mustard: 30;

6.        Cenchrus pauciflorus – Sandbur: 10;

7.        Eichhornia crassipes (Mart.) Solms – Floating waterhya- cinth: 10;

8.        Euryops  sunbcarnosus   subsp.  vulgaris   –  Sweet  resin- bush: 10;

9.        Ipomoea triloba L. – Three-lobed morning glory: 10;

10.     Rumex crispus – Curly dock: 30;

11.     Salsola kali var. tenuifolia – Russian thistle: 30;

12.     Sinapis arvensis – Charlock or Wild mustard: 30; and

13.     Sida hederacea – Alkali mallow: 30.

Historical Note

Adopted effective December 21, 1981 (Supp. 81-6). For- mer Section R3-4-112 renumbered without change as Section R3-4-403 (Supp. 89-1). Section R3-4-403 renum- bered 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, effec- tive June 2, 2007 (Supp. 07-2).