ERYNGO, WATER EUPHORBIA NUTANS. 29 



Eryngo, water-. See Eryngium yuccifolium. 



Erythronium americanum Ker. liily family (Liiliaceae). 



Yellow adder' s-tongue; dog's-tooth violet; yellow snowdrop; rattlesnake- violet; 



yellow snakeleaf. 

 Native, perennial herb, occurring in moist woods and thickets, Nova Scotia to 



Minnesota, south to Arkansas and Florida. 

 Parts used.— Leaves and root (nonofficial). 



Euonymus. See Euonymus atropurpureus. 



Euonymus atropurpureus Jacq. Staflf-tree family (Celastraeeae). 



Euonymus; wahoo; burningbush; spindle-tree; Indian arrowwood. 



Native shrub or small tree, growing in woods and thickets from Ontario and 

 eastern United States west to Montana. 



Part used. — Bark of root (official) . 

 Eupatorium. See Eupatormm perfoliatum . 



Eupatorium ageratoides L. f. Aster family (Asteraceae). 



White snakeroot; white sanicle; Indian sanicle; deerwort-boneset; poolwort; 

 poolroot; richweed; squaw-weed. 



Erect, perennial herb, 1 to 4 feet high, native; in rich woods from Canada to 

 Georgia, west to Nebraska and Louisiana. 



Part used. — Root (nonofficial). 



Eupatorium aromaticum. L. Aster family (Asteraceae). 



Smaller white snakeroot; poolwort; poolroot; wild hoarhound. 



Native, perennial herb, 1 to 2 feet high; in dry soil from Massachusetts to 

 Florida, especially throughout the Middle States. 



Part used. — Root (nonofficial). 

 Eupatorium. perfoliatum L. Aster family (Asteraceae). 



Eupatorium; boneset; thoroughwort; Indian sage; agueweed; crosswort. 

 Native, perennial herb, 1 to 5 feet high; in low, wet places from Canada to 



Florida, west to Texas and -Nebraska. 

 Parts used. — Leaves and flowering tops (official). 



Eupatorium purpureum. L. Aster family (Asteraceae). 



Queen-of-the-meadow; gravelroot; Joe-Pye-weed ; purple boneset; kidneyroot. 

 Native, perennial herb, 3 to 10 feet high; in low grounds from Canada to Florida 



and Texas. 

 Parts used. — Root and herb (nonofficial). 



Euphorbia corollata L. Spurge family (Euphorbiaceae). 



Flowering spurge; emetic-root; milk-ipecac; snakemilk; purging-root. 



Native, perennial herb, about 3 feet in height, growing in dry fields and woods 

 from Ontario to Florida and Minnesota to Texas. 



Part used. — Root (nonofficial).' 

 Euphorhia hijpericifolia A. Gray. Same as EujyJiorhia nutans. 

 Euphorbia ipecacuanhae L. Spurge family (Euphorbiaceae). 



Wild ipecac; ipecac-spurge; American ipecac; Carolina ii)ecac. 



Native, perennial herb, 4 to 10 inches high; in dry, sandy soil, mostly near the 

 coast, from Connecticut to Florida. 



Part used. — Root (nonofficial). 



Euphorbia nutans Lag. Spurge family (Euphorbiaceae). 



Synonym. — Euphorhia hypericifoUa A. Gray. 



Large spotted spurge; black purslane; fluxweed; milk-purslane. 



Native, annual plant, from ^ to 2 feet in height; in rich soils, iields, and thickets 

 throughout eastern North America, except extreme north, and extending 

 west to the Rocky Mountains. 



Part used. — Herb (nonofficial). 



