CONEFLOWER, TALL CORNUS FLORIDA. 28 



Coneflower, tall. See Rudbeckia laciniata. 

 Congo-root. See Psoralea pedunculata. 

 Conium. See Conium maculatum. 



Conium maculatum L. Parsley family (Apiaceae). 



Conium; poison-hemlock; spotted parsley; spotted cowbane. 

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



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

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

 cial); leaves (nonofficial). 



Consumptive's- weed. See Eriodictyon calif ornicum. 



Convallaria. See Convallaria majalis. 



Convallaria biflora Walt. Same as Polygonatum biflorum. 



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



Convallaria; lily-of-the-valley. 



A low, perennial herb; indigenous; on the higher mountains from Virginia 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 Minnesota; most common in the New 

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

 Parts 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 Maine 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. Dogwood 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). 



Green 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. Dogwood family (Cornaceae). 



Flowering dogwood; boxwood. 

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



Texas and Missouri. Most abundant in the Middle States. 

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

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