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Weed Seeds Order Review - Proposal for Change
8.0 Weed Seeds in Imported Seed 2001-2008

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Impurities Retrieved from Imported Seed Samples
The following table lists the impurities found in imported seed samples and the total amount retrieved between 2001 and 2008.
Words in square brackets [ ] have been added for clarity.
Species Total
Agrostis sp. 1
Alfalfa (Medicago sativa) 11
Allium sp. 1
Alopecurus Species 1
Alophia sp. 1
Ammi sp. 1
Arnica sp. (Arnica sp.) 1
Asteraceae species (Asteraceae sp.) 1
Barley (Hordeum vulgare) 2
Barley, Wild (Hordeum jubatum) 5
Beet (Beta vulgaris) 1
Black Medick (Medicago lupulina) 4
Black nightshade (Solanum nigrum) 1
Bluegrass (Poa sp.) 2
Bluegrass Annual (Poa annua) 10
Bluegrass, Big (Poa ampla) 3
Bluegrass, Bulbous (Poa bulbosa) 10
Bluegrass, Annual (Poa annua) 21
Bluegrass, Fowl (Poa palustris) 3
Bluegrass, Kentucky (Poa pratensis) 17
Bluegrass, Canada (Poa compressa) 4
Bluegrass (Poa sp.) 2
Bluegrass, Rough (Poa trivialis) 10
Bluegrass, Sandberg  (Poa secunda) 1
Bluestem (Andropogon sp.) 1
Bluestem, Big (Andropogon gerardii) 1
Bluestem, Little (Androgogon scoparius) 1
Brassica sp. 5
Bromegrass (Bromus sp.) 12
[Brome] Chess 2
Brome, Downy (Bromus tectorum) 4
Brome, Japanese (Bromus japonicus) 11
Bromegrass, Mountain (Bromus marginatus) 1
Bromegrass, Sweet (Bromus carinatus) 2
Bromus hordeaceus 1
Buckwheat, Wild (Polygonum convolvulus) 7
Canarygrass, Reed (Phalaris arundinacea) 5
Carex Sp. ( ) 2
Carrot (Daucus carota) 3
Carrot, Wild (Daucus carota) 2
Catchfly, Night-Flowering (Silene noctiflora) 6
Catchfly, Small flowered  1
Cat's Ear 1
Chamomile, Scentless (Matricaria perforata) 3
Chenopodium sp. 7
Chess, Australian (Elymus elymoides) 1
Chess, Soft (Bromus mollis) 2
Chickweed, Common (Stellaria media) 17
Chicory (Cichorium intybus) 1
Cinquefoil (Potentilla sp.) 2
Cleavers (Galium aparine) 7
Clover, Alsike (Trifolium hybridum) 25
Clover, Hop (Trifolium aureum) 7
Clover, Ladino 3
Clover, Persian (Trifolium resupinatum) 5
Clover, Red (Trifolium pratense) 16
Clover, Small Hop (Trifolium dubium) 6
Clover, Strawberry (Trifolium fragiferum) 3
Clover, Sweet 7
Clover, White (Trifolium repens) 19
Corn Spurrey (Spergula arvensis) 1
Cockle, White (Silene pratensis) 6
Cress, Marsh Yellow (Rorippa islandica) 1
Crested Dogtail (Cynosurus cristatus) 1
Death camas (Zigadenus gramineus) 1
Dill (Anethum graveolens) 1
Dock (Rumex sp.) 14
Dock, Golden (Rumex maritimus) 1
Dodder (Cuscuta sp.) 3
Echinochloa sp. 1
Ergot Bodies (Claviceps purpurea) 50
Euphorbiaceae Family 1
European Pasqueflower (Anemone pulsatilla) 1
Fall Dandelion 1
Fescue (Festuca sp.) 3
Fescue, Red (Festuca rubra) 17
Fescue, Squirreltail (Vulpia bromoides) 1
Fescue, Tall (Festuca arundinacea) 16
Fescue, Rat's-Tail ( ) 4
Fiddleneck (Phacelia tanacetifolia) 2
Fireweed (Epilobium angustifolium) 1
Foxtail, Creeping (Alopecurus arundinaceus) 1
Foxtail, Green (Setaria viridis) 17
Foxtail, Meadow (Alopecurus pratensis) 1
Foxtail, Water (Alopecurus geniculatus) 8
Foxtail, Yellow (Setaria glauca) 15
Garden Rocket 3
Geranium, Spotted (Geranium maculatum) 1
Glyceria Species (Glyceria sp.) 3
Grass, Alkali (Puccinellia sp.) 5
Grass, Annual Hair (Deschampsia danthonioides) 3
Grass, Barnyard (Echinochloa crusgalli) 8
Grass, Bent (Agrostis sp.) 6
Grass, Bermuda (Cynodon dactylon) 2
Grass, Black (Alopecurus myosuroides ) 3
Grass, Couch (Agropyron repens) 7
Grass, Green Needle (Stipa viridula) 1
Grass, Indian (Sorghastrum nutans) 1
Grass, Johnson (Sorghum halepense) 1
Grass, Manna (Glyceria sp.) 6
Grass, Orchard (Dactylis glomerata) 9
Grass, Prairie June 1
Grass, Slough (Beckmannia syzigachne) 1
Grass, Spear 2
Grass, Tickle 1
Grass, Velvet (Holcus lanatus) 3
Grass, Weeping alkaligrass 2
Groundsel 1
Hawk's-beard (Crepis sp.) 1
Heal-all (Prunella vulgaris) 6
Hedge Parsley (Torilis nodosa) 2
Henbit (Lamium amplexicaule) 1
Hyssop Loosestrife 1
Hyssop-Leaved Loosestrife (Lythrum hyssopifolia) 1
Juncus species 1
Kanpweed, Russian (Acroptilon repens) 1
Knotweed (Polygonum sp.) 2
Kochia (Kochia sp.) 9
Lamb's-quarters (Chenopodium album) 41
Lamiaceae Family 1
Lentil (Lens culinaris) 1
Lettuce (Lactuca sativa) 4
Locoweed (Oxytropis sp.) 1
Lolium sp. (Lolium sp.) 2
Lotus sp. (Lotus sp.) 3
Madder, Field (Sherardia arvensis) 4
Mallow (Malva sp.) 1
Mayweed 2
Mayweed, Stinking (Anthemis cotula) 9
Millet Crown 1
Millet, Foxtail (Setaria italica) 1
Millet, Proso (Panicum miliaceum) 3
Millet, Siberian (Setaria italica) 1
Mustard, Brown 1
Mustard, Hoary (Hirschfeldia incana) 1
Mustard, Tumble (Sisymbrium altissimum) 3
Mustard, Wild (Sinapis arvensis) 3
Mustard, Wormseed (Erysimum cheiranthoides) 1
Needle spike-rush (Eleocharis acicularis) 1
Nipplewort (Lapsana communis) 4
Nothing Found 142
Oat (Avena sp.) 1
Oat, Wild (Avena fatua) 5
Oatgrass, Hooker's (Helictotrichon hookeri) 2
Oatgrass, Tall (Arrhenatherum elatius) 2
Onagraceae Family 1
Oregano (Origanum vulgare) 1
Ox-Eye Daisy (Chrysanthemum leucanthemum) 1
Panicum bergi 1
Panicum Species 6
[Panicum] Switchgrass (Panicum virgatum) 2
[Panicum] Witchgrass (Panicum capillare) 3
Parsley (Petroselinum crispum) 1
Peppergrass, Common (Lepidium densiflorum) 1
Persicaria lapathifolia 1
Pigweed (Amaranthus sp.) 15
Pigweed, Redroot (Amaranthus retroflexus) 5
Pigweed, Russian (Axyris amaranthoides) 2
Plantain (Plantago sp.) 2
[Plantain] Ribgrass (Plantago lanceolata) 11
Polygonaceae sp. (Polygonaceae sp.) 2
Polygonum Species 7
[Polygonum] Prostrate Knotweed (Polygonum aviculare) 4
[Polygonum] Smartweed (Polygonum sp.) 4
Radish (Raphanus sativus) 1
Radish, Wild (Raphanus raphanistrum) 2
Ragweed, Common (Ambrosia arteisiifolia) 1
Ragweed, Giant (Ambrosia trifida) 1
Rapeseed, Argentine 7
Rapeseed (B. napus) (Brassica napus) 2
Rudbeckia sp. 1
Rye (Secale cereale) 1
Ryegrass (Lolium sp.) 39
Scarlet Pimpernel (Anagallis arvensis) 1
Setaria sp. 1
Sheep Sorrel (Rumex acetosella) 11
Shepherd's-purse (Capsella bursa-pastoris) 2
Side-oats grama (Bouteloua Curtipendula) 1
Solanaceae sp. 1
Sorghum (Sorghum bicolor) 1
Sow Thistle, Annual (Sonchus oleraceus) 4
Sow Thistle, Spiny Annual 7
Soybean (Glycine max) 2
St John's-wort (Hypericum perforatum) 1
Starthistle (Centaurea sp.) 1
Stinkweed (Thlaspi arvense) 6
Stork's-bill (Erodium cicutarium) 4
Thistle, Canada (Cirsium arvense) 5
Thistle, Russian (Salsola pestifer) 3
Thistle, Yellow Star 1
Timothy (Phleum pratense) 24
Tomato (Lycopersicon esculentum) 1
Tomato, Wild (Solanum triflorum) 1
Trefoil, Big (Lotus pedunculatus) 2
Trefoil, Bird's-foot (Lotus corniculatus) 5
Trefoil, Large Bird's-Foot 6
Velvetleaf (Abutilon theophrasti) 1
Ventenata dubia 4
Vetch, Four-seeded (Vicia tetrasperma) 1
Vicia sp. 1
Viola Species 5
Vulpia sp. (Vulpia sp.) 23
Vulpia Species 3
Wheat (Triticum aestivum) 5
Wheatgrass (Agropyron sp.) 1
Wheatgrass, Bluebunch 1
Wheatgrass, Crested 2
Wheatgrass, Northern (Agropyron dasystachyum) 1
Wheatgrass, Pubescent (Agropyron trichophor) 1
Wheatgrass, Slender (Agropyron trachycaulum) 4
Wildrye, Dahurian (Elymus dahuricus) 2
Windgrass (Apera spica-venti) 11
Wiregrass (Ventenata dubia) 2
Wood-Sorrel (Oxalis stricta) 1
Woolly Cupgrass (Eriochloa villosa) 1
Yellow Daisy 1
Yellow Rocket (Barbarea vulgaris) 1
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