CRUDE DRUGS. 



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EUPATORIUM.— BONESET.— The leaves and flowering 

 tops of Eupatorium perfoUatum (Earn. Compositse), a perennial 

 herb (Fig. 270) indigenous to Eastern and Central North Amer- 

 ica (p. 392). Boneset is collected in July and August and dried. 



Fig. 270. I. EupaiorvUm perfoliatum with opposite, connate-perfoliate leaves and 

 cymose-paniculate inflofescence. 2, Eupatorium purpureum with verticillate, petiolate 

 leaves, and a large terminal panicle of flowers. 



Description. — ^Usually in more or less broken fragments. 

 Stem cylindrical, somewhat quadrangular, flattened, about 3 mm. 

 in diameter, longitudinally wrinkled, tomentose; internodes 5 to 

 8 cm. long. Leaves lanceolate, opposite, 10 to 20 cm. long, 2 to 4 

 cm. broad ; apex acuminate ; base connate-perfoliate ; margin cre- 

 nate-serrate ; upper surface dark green, midrib and veins de- 

 pressed, reticulate, glabrous, except near the margin; under sur- 



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