224 UNIVERSITY OF MISSOURI STUDIES [3^6 



921. E. sessilifolium L. Upland boneset. 



Rare in thickets on the bluff between Hinkson and Grind- 

 stone creeks. 



Massachusetts to Michigan and Missouri; Georgia to 

 Alabama. 



922. E. perfoliatum L. Common boneset. 

 Common in wet grounds. 



New Brunswick to North Dakota; Florida to Texas. 



923. E. ageratoides L. f. White snakeroot. 

 Common in rich woods and deep ravines. 



New Brunswick to Ontario and South Dakota; Georgia 

 to Louisiana and the Indian Territory. 



924. E. aromaticum L. Aromatic boneset. 

 Infrequent in dry thickets. 

 Massachusetts to Michigan and Missouri. 



925. E. coelestinum L. [C.coelesti?nmi{l^.)'DC']. Mist- 

 flower. 



Rare in moist shady places. 



New Jersey and Michigan to Kansas; Florida to Texas. 



394. KUHNIA L. False boneset. 



926. K. eupatorioides L. 



Frequent in rocky open places. 



New Jersey to Michigan and Montana; Florida to Texas. 



395. LIATRIS Schreb. iLACINARIA Hill]. 

 Button-snakeroot. 



927. L. scariosa (L.) Willd. \_Laci?iaria scariosa {l^.) HWY]. 

 Large button-snakeroot. 



Frequent in dry open wild places. 

 Maine to Manitoba; Florida to Texas. 



928. L. squarrosa (L.) Willd. \Lacinaria squarrosa (L.) 

 Hill]. Scaly blazing-star. 



Common on dry hills and cliffs. 



Ontario to South Dakota; Florida to Texas. 



