576 
Cow-cress, 178° 
Cow-herb, 151 
Cow-poison, 164 
Cowthwort, 356 
Cracca virginiana, 238 
Crane’s-bill, Small-flowered, 257 
Creeping Jack, 200 
Crepis biennis, 550 
capillaris, 549 
virens, 549 
Cress, Bastard, 174 
Bitter, 197 
Bulbous, 197 
Carpet, 179 
Field, 178 
Lesser Wart, 179 
Penny, 174 
Rocket, 196 
St. Barbara’s, 196 
Spring, 197 
Swine, 179 
Winter, 196 
Crosswort, 417 
Crotalaria sagittalis, 222 
Croton capitatus, 261 
Crowfoot, Celery-leaved, 154 
Cursed, 154 
Ditch, 154 
Early, 156 
Small-flowered, 155 
Tall, 159 
Crownbeard, Golden, 470 
Sunflower, 469 
Crown-of-the-Field, 142 
Crowtoes, 237 
Cucumber, One-seeded Bur, 405 
Climbing Wild, 406 
Four-seeded Bur, 406 
Star, 405 
Cucurbita fetidissima, 404 
perennis, 404 
Cudweed, Clammy, 444 
Childing, 441 
Low, 445 
Marsh, 445 
Winged, 444 
Cuphea, Clammy, 291 
Cuphea petiolata, 291 
Cuscuta arvensis, 328 
Epilinum, 327 
Epithymum, 324 
Gronovit, 328 
INDEX 
Cycloloma. atriplicifolium, 106 
Cynanchum nigrum, 319 
Cynodon Dactylon, 51 
Cynoglossum. officinale, 332 
Cynthia, 527 
Cyperus, Baldwin’s, 72 
Hydra, 68 
Straw-colored, 71 
Cyperus diandrus, 67 
echinatus, 72 
esculentus, 70 
rotundus, 68 
strigosus, 71 
Daisy, Blue Spring, 436 
Cone-headed, 464 
Michaelmas, 434 
Midsummer, 493 
Ox-eye, 462, 493 
Red, 554 
Stinking, 458 
White, 493 
Yellow, 462 
Dandelion, 535 
Dwarf, 527 
Fall, 530 
False, 548 
Red-seeded, 537 
Danthonia spicata, 50 
Darkey-heads, 462 
Darnel, Bearded, 60 
Common, 59 
Poison, 60 
White, 60 
Datura Metel, 376 
Stramonium, 375 
Tatula, 376 
Daucus carota, 307 
Death-of-Man, 301 
Delphinium azureum, 163 
bicolor, 165 
carolinianum, 163 
Consolida, 161 
glaucum, 164 
Menziesti, 166 
trollifolium, 162, 167 
D As, A se, 244 
canescens, 243 
Devil, Blue, 342 
King, 557 
Yellow, 556 
Devil’s Apple, 375 
