18 
SEED TRADE BUYERS GUIDE 
NOXIOUS WEED SEEDS 
'PRACTICALLY all of the State Seed Laws name some noxious weed seeds. The 
sale of agricultural seed containing any of the noxious weed seeds is prohibited in 
some of the states. Most states, however, allow a very small percentage to be present. 
Regulations vary in the different states. A complete summary of all state seed laws may 
be found on page 8. 
Alabama. 
Wild Onion, Bermuda Grass, Quack Grass, Dodder, Johnson Grass, Nut Grass, Canada Thistle, Hawkweed, 
Corn Cockle, Chicory. 
Arizona. 
Dodders, Russian Thistle, Johnson Grass, Bermuda Grass, Florida Nut Grass, Wild Mustard, Careless Weed, 
Wild Oats, Lamb’s Quarter, Wild Barley, Rag Weed, Burr Grasses. Prohibit Johnson Grass, Canada Thistle, 
Russian Thistle, Scotch Thistle, Bull Thistle, Cocklebur, and Burdock. (Nox. weed law of 1913.) 
Arkansas. 
Dodders, Buckhorn, Plantains, Sorrels, Docks, Cheat, Red Rice, Wild Carrot, Wild Onion, Thistle, Nut Grass, 
Johnson Grass, White top. 
California. 
Primary Noxious: Johnson Grass, Camel’s Thorn, Hoary Cress, Morning Glory, Canada Thistle, Russian Knap¬ 
weed. Secondary Noxious: Yellow Star Thistle, Goat Grass, Coast Dandelion, Russian Thistle, Silver-leaf 
Nightshade, Creeping Sow Thistle, Klamath Weed, Nut Grass, White or Creeping Mallow, Dodder, Puncture 
Vine. 
Colorado. 
Dodders, Wild Oats, Plantains, Bindweed, Poverty Weed, Crab Grass, Cheat, Canada Thistle, Cockle, Sow Thistle, 
Wild Barley, Hopclover, Mustards. 
Connecticut.... 
Quack Grass, Canada Thistle, Plantain, Hawkweed, Dodder, Curled Dock. 
Delaware. 
Quack Grass, Canada Thistle, Dodders, Wild Mustard, Wild Oats, Orange Hawkweed. 
Idaho. 
Wild Mustards, Quack Grass, Canada Thistle, Wild Oats, Dodders, Corn Cockle, Plantains, Perennial Sow Thistle, 
French Weed, Hoary Cress, Wild Morning Glory, Spurge, Puncture Vine, Yellow Toadflax, Russian Knapweed, 
Illinois. 
Canada Thistle, Quack Grass, Wild Mustard, Wild Carrot, Dodder, Dock, Buckhorn Plantain, Ox-eye Daisy, 
Field Sorrel, Johnson Grass. 
Indiana. 
Buckhorn, Bracted Plantain, Canada Thistle, Chicory, Common Plantain, Com Cockle, Curled Dock, Dodder, 
Horse Nettle, Wild Mustard, Ox-eye Daisy, Prickly Lettuce, Quack Grass, Red Sorrel, Whitetop, Wild Carrot, 
Wild Onion, Yellow Trefoil. 
Iowa. 
Primary Noxious: Quack Grass, Canada Thistle, Perennial Sow Thistle, Perennial Pepper Grass, European Morn¬ 
ing Glory, Horse Nettle, Leafy Spurge, Russian Knapweed, Buckhorn. Secondary Noxious: Wild Carrot, Sour 
Dock, Smooth Dock, Sheep Sorrel, Wild Oats, Wild Mustard, Indian Mustard, Black Mustard, Dodders. 
Kansas. 
Canada Thistle, Corn Cockle, Buckhorn, Mustards, Frenchweed, Quack Grass, Wild Parsnip, Wild Onion. 
Prohibit 1-5 grams Dodder and Johnson Grass. Prohibit 1-100 grams Field Bindweed. 
Kentucky. 
Quack Grass, Dodders, Sorrel, Buckhorn, Corn Cockle, Wild Onion, Canada Thistle. 
Louisiana. 
Johnson Grass, Tie Vine, Cocklebur, Wild Mustards, Crab Grass, Large Docks, Dandelion, Cocoa Grass, Dodder, 
Foxtail, Ox-eye Daisy, Thistle, Bermuda Grass. 
Maine. 
None listed in law itself—large list named in Regulations. 
Maryland. 
Wild Onion, Bermuda Grass, Quack Grass, Dodder, Canada Thistle, Hawkweed, Chicory. 
Massachusetts. 
Dodder, Quack Grass, Wild Mustard, Canada Thistle. 
Michigan. 
Quack Grass, Dodders, Canada Thistle, Wild Carrot, Mustards. 
Minnesota. 
Quack Grass, Canada Thistle, Perennial Sow Thistle, Dodders, Leafy Spurge, Ox-eye Daisy, Buckhorn Plantain. 
Mississippi. 
Wild Onion, Bermuda Grass, Quack Grass, Dodder, Johnson Grass, Nut Grass, Canada Thistle, Hawkweed, Corn 
Cockle, Chicory. 
Missouri. 
Quack Grass, Dodders, Russian Thistle, Wild Carrot, Sorrels, Docks, Wild Onion, Buckhorn and other varieties of 
Plantain. Prohibit Canada Thistle. 
Montana. 
Quack Grass, Fan Weed, Wild Oats, Dodder, Canada Thistle, Wild Mustard. 
Nebraska. 
Small Flowered Morning Glory, Wild Mustard, Quack Grass, Wild Oats, Dodders, Canada Thistle. 
Nevada. 
Dodder, Star Thistle, Thistles, Russian Thistle, Hoary Cress, Morning Glory, Johnson Grass, Nut Grass, Creeping 
Mallow, St. Johnswort, Dandelion, Water Cress, Puncture Vine, Mustards. 
New Hampshire 
No noxious weeds named. 
New Jersey.... 
Canada Thistle, Dodders, Quack Grass, Horse Nettle, Russian Knapweed. 
New Mexico... 
Quack Grass, Fan Weed, Mustard, Wild Oats, Dodder. 
New York. 
Quack Grass, Wild Mustards, Canada Thistle, Dodder, Crab Grasses, Docks. 
North Carolina. 
Wild Onion or Wild Garlic, Dodder, Wild Oats, Corn Cockle, Cheat. 
North Dakota.. 
Quack Grass, Canada Thistle, Perennial Sow Thistle, Dodder, Leafy Spurge, Field Bindweed. 
Merchandise and Seedsmen’s Supplies Index—Pages 4 and 6 
