THE SEED WORLD 
SCIENTIFIC NAMES OF NOXIOUS WEEDS AS USED IN STATE SEED LAWS—(ConUnued) 
S—(Continued) 
Small Flowered Morning Glory— Convolvulus 
arvensis 
Smooth Dock— Rumex altissimum 
Snapdragon— Linaria vulgaris (or Linaria Un¬ 
aria) 
Sorrel— Rumex acetosella 
Sour Dock— (Iowa Rumex crispus) (Tenn. 
Rumex obtusifolius) 
Sow Thistle, Annual— Sonchus asper. Perennial 
—Sonchus arvensis. Prickly— Sonchus oler- 
aceus 
Spotted Catsear— Hypochaeris radicata 
Spreading Dog Bane —Apooyanum androsaemi- 
folium 
Spurge —(Ida Euphorbia cyperissias) 
Squirrel-tail— Eordeum jubatum 
St. Johnswort —Hypericum perforatum 
Star Thistle— Centaurea solstilialis (W. Va. & 
Calif.) (Nev. Centaurea spp.) (Ore. Centaurea 
solstilias, melitensis and iberica) 
Sumpweed —Iva axillaris 
Sweet Scabious— Erigeron annuus 
T 
Thistle— (Nev. Cirsium or Carduus or Cnicus 
spp.) (La. Sonchus spp.) 
Tie Vine— Convolvulus arvensis 
Toad Flax— Linaria vulgaris 
Tumble Mustard— Sisymbrium altissimum 
W 
Water Grass^— (Nev. Echinochloa spp.) 
White Top— (Ind. Erigeron annuus) (Ariz. Lep- 
idium spp.) (III. Utah Lepidium draba) (Ore. 
& Wash. Lepidium draba and repens, and Hy- 
menophysa pubscens) (Wyo. Lepidium draba 
and repens) 
Wild Barley— Hordeum jubatum 
Wild Carrot— Caucus carota 
Wild Garlic— Allium vineale 
Wild Morning Glory—(Ore. & Idaho Convolvu¬ 
lus arvensis) 
Wild Mustard— Brassica arvensis 
Wild Mustards— Brassica spp. 
W^ild Oats— Avena fatua 
Wild Onion— Allium vineale 
Wild Radish —Raphanus raphanistrum 
Wire Grass— Tex. Paspalum distichum 
Whorled Milkweed —Asclepias verticillata 
White Ragweed— Franseria discolor 
Y 
Yarrow— Achillea millefolium 
Yellow Cress— Roripa sylvestris 
Yellow Star Thistle— Centaurea solstitialis 
Yellow Toadflax— Linaria vulgaris 
Yellow Trefoil— Medicago lupulinus 
Krussow Double 
Spiral 
For the separation of round 
seeds from irregular shaped 
seeds or grain. Does closer 
work with better capacity. 
Expert Rehuller and 
Scarifier 
For rehulling and scarifying 
clovers, alfalfa, Lespedeza, 
etc. Adjustable to any con¬ 
dition of seed. 
CLELAND MANUFACTURING CO. 
2800 Washington Ave. MINNEAPOLIS. MINN. 
What Merchandise 
Can the Seed Dealer 
Handle Profitably? 
Ask Seed World Service Dept* 
223 W. Jackson Blvd., Chicago 
Advertisers Index—Page 335 
