580 
Grass, — Continued 
Slender Meadow, 54 
Small Crab, 27 
Small Rush, 47 
Smut, 47 
Snake, 20, 54 
Sour, 95, 255 
Sprouting Panic, 29 
Stink, 54 
Summer, 31 
Sweet, 37 
Switch, 30 
Syrian, 22 
Tickle, 28, 64 
Tine, 247 
Tongue, 176 
Tufted Spear, 54 
Tumbleweed, 28 
Twitch, 61 
Vanilla, 37 
Virginia Beard, 21 
Wart, 272 
Weather, 39 
Wheat, 61 
Wildcat, 50 
Wild Oat, 50 
Willard’s Brome, 55 
Wire, 44, 50, 53, 74 
Wood, 43 
Yard, 53 
Yellow Nut, 70 
Graymile, 340 
Grim-the-Collier, 554 
Grindelia lanceolata, 421 
squarrosa, 420 
Grinsel,’504 
Gromwell, Common, 340 
Corn, 339 
Field, 339 
Gray, 341 
Ground Bur-nut, 259 
Ground-cherry, Low Hairy, 370 
Mexivan, 369 
Prairie, 371 
Virginia, 371 
Ground-hele, 383 
Groundsel, Common, 504 
Cress-leaved, 505 
Grundy Swallow, 507 
Gumbo, 283 
Gum-plant, Broad-leaved, 420 
Narrow-leaved, 421 
INDEX 
Gum-weed, 420 
Gut-weed, 537 
Hardhack, 204 
Yellow, 207 
Hardheads, 521 
Hardock, 508 
Harvest Lice, 475 
Hawkbit, Autumn, 530 
Hawksbeard, Narrow-leaved, 550 
Rough, 550 
Smooth, 549 
Hawkweed, Field, 556 
Hairy, 557 
Mouse-ear, 554 
Orange, 554 
Heal-all, 352, 380 
Heart-of-the-Earth, 352 
Heartweed, 102 
Hedeoma pulegioides, 358 
Hedge-burs, 397 
Hedge Taper, 377 
Helenium autumnale, 481 
nudiflorum, 482 
tenufolium, 483 
Helianthus annuus, 465 
scaberrimus, 466 
tuberosus, 467 
Heliotrope, Indian, 331 
Heliotropium indicum, 331 
Hellbind, 324 
Hellebore, American, 78 
False, 78 
Green, 78 
Swamp, 78 
Heliroot, 389 
Hemlock, Deadly, 300 
Poison, 300 
Water, 301 
Hemp, 86 
American, 314 
Bastard, 354 
Black Indian, 315 
Water, 125 
Wild, 354, 454 
Henbane, Black, 373 
Henbit, 355 
Heracleum lanatum, 306 
Herb, Balsam, 494 
Barbara’s, 196 
Carpenter's, 346, 352 
Felon, 496, 554 
