24 WILD MEDICINAL PLANTS OF THE UNITED STATES. 



Cornus sericea L. Same as Cornus amomum. 



Corydalis canadensis Goldie. Same as Bikukulla canadensis. 



Corydalis formosa Pursh. Same as Bikukulla canadensis. 



Cotton-gum. See Nyssa aquatica. 



Cotton weed. See Anaphalis margaritacea. 



Couch-grass. See Agropyron repens. 



Cough weed. See Senecio aureus. 



Coughwort. See Tussilago farfara. 



Cowbane, spotted. See Conium maculatum. 



Cow-lily. See Nymphaea advena. 



Cow-parsnip. See Heracleum lanatum. 



Cracca virginiana L. Pea family (Fabaceae). 



Synonym. — Tephrosia virginiana Pers. 



Devil' s-shoestring; hoary pea; goat's-rue; catgut. 



Hoary, perennial herb, 1 to 2 feet high, native; occurring in dry, sandy soil 

 from New England to Florida, west to Texas and Minnesota. 



Part used. — Eoot (nonofficial). 

 Cramp-bark. See Viburnum opulus. 

 Cranberry, high-bush. See Viburnum opulus. 

 Cranberry, upland-. See Arctostaphylos uva-ursi. 

 Crane's-bill, spotted. See Geranium maculatum. 

 Crane's-bill, wild. See Geranium maculatum. 

 Crataegus oxyacantha L. Apple family (Malaceae). 



Hawthorn; hedgethorn; whitethorn; may thorn. 



Shrub or tree, introduced from Europe, and sparingly escaped from cultivation. 



Part used. — Berries (nonofficial). 

 Crawley-root. See Corallorhiza odontorhiza. 

 Crosswort. See Eupatorium perfoliatum. 

 Cucumber-tree. See Magnolia acuminata and M. tripetala. 

 Cudweed, low. See Gnaphalium uliginosum. 

 Cudweed, marsh-. See Gnaphalium uliginosum. 

 Culver' s-physic. See Veronica virginica. 

 Culver' s-root. See Veronica virginica. 

 Cunila mariana L. Same as Cunila origanoides. 

 Cunila origanoides (L. ) Britton. Mint family (Menthaceae). 



Synonym. — Cunila mariana L. 



American dittany; stonemint. 



Indigenous, perennial plant, found on dry hills and in dry woods from New York 

 to Florida, west to Ohio. 



Part used. — Herb (nonofficial). 

 Cup-plant. See Silphium perfoliatum. 

 Custard-apple. See Asimina triloba. 

 Cynoglossum officinale L. Borage family (Boraginaceae). 



Hound' s-tongue; gypsy-flower. 



Biennial herb, about 3 feet high, naturalized from Europe, and occurring in 

 waste places from Canada to North Carolina, west to Kansas and Minnesota. 



Parts used. — Leaves and root (nonofficial). 

 Cypripedium. See Cypripedium hirsutum and C. parviflorum. 



