CONEFLOWER, TALL ^CORNUS FLORIDA. 28 



Coneflower, tall. See Rudbechia laciniata. 



Congo-root. See Psoralea pedunculata. 



Conium. See Conium maculatum. 



Conium maculatum L. Parsley family (Apiaceae). 



Conium; poi-son-hemlock; spotted parsley; spotted cow bane. 



Biennial herb, 2 to 6 feet high, naturalized from Europe; common in waste 

 places, especially in the Eastern and Middle States. Poisonous. 



Farts used. — Full-grown, but unripe, fruit, carefully dried and preserved (offi- 

 cial); leaves (nonofficial). 



Consumptive' s-weed. See Eriodictyon californicum. 



Convallaria. See Convallaria majalis. 



Convallaria hiflora Walt. Same as Polygonatum Inflorum. 



Convallaria majalis L. liily-of-the-valley family (Convallariaceae). 



Convallaria; lily-of-the- valley. 



A low, perennial herb; indigenous; on the higher mountains from A' irginia to 

 the Carolinas. 



Parts used. — Rhizome and roots (official); herb and flowers (nonofficial). 

 Convallaria racemosa L. Same as Vagnera racemosa. 

 Convolvulus panduratus L. Same as Ipomoea pandurata. 

 Coolwort. See Tiarella cordifolia. 



Coptis trifolia (L.) Salisb. Crowfoot family (Ranunculaceae). 



Goldthread; cankerroot; mouthroot; yellowroot. 



Low, native, perennial herb, growing in damp mossy woods and bogs from Can- 

 ada and Alaska south to Maryland and INIinnesota; most common in the New 

 England States, northern New York and Michigan, and in Canada. 



Paris used. — Rhizome and rootlets (nonofficial). 

 Corallorhiza odontorhiza ( Willd. ) Nutt. Orchid family ( Orchidaceae ) . 



Crawley-root; coralroot; dragon's-claw; chickentoe. 



Leafless plant, 6 to 15 inches high, found in rich woods from Mauie to Florida, 

 west to Michigan and Missouri. Native. 



Part used. — Rhizome (nonofficial). 

 Coralroot. See Corallorhiza odontorhiza. 

 Corn, squirrel-. See Bikukulla canadensis. 

 Corn, turkey-. See Bikukulla canadensis. 

 Cornel, silky. See Cornus amomum. 

 Corn-snakeroot. See Eryngium yuccifolium. and Lacinaria spicata. 



Cornus amomum Mill. Dog-wood family (Cornaceae). 



Synonym. — Cornus sericea L. 

 Red osier; swamp-dogwood; silky cornel; rose-willow. 



Native shrub, 3 to 10 feet high; in low woods and along streams, Canada to 



Florida, west to Texas and the Dakotas. 

 Part used. — Bark (nonofficial). 



Cornus circinata L'Her. Dogwood family (Cornaceae). 



(jreen osier; round-leaved dogwood. 



Native shrub, 3 to 10 feet high; in shady places, Canada and the northeastern 

 United States. 



Part used. — Bark (nonofficial). 



Cornus florida L. Dog-wood family (Cornaceae). 



Flowering dogwood; boxwood. 



Small, native tree or large shrub, growing in woods from Canada to Florida, 



Texas and ^Missouri. Most abundant in tiie IMiddle States. 

 Parts rtsed— Bark of tree and of root, the latter preferred (nonofficial). 

 11072— No. 89—06 4 



