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MANUAL OF POISONOUS PLANTS 



Campanulaceae. Bluebell Family. 



Lobelia cardinalis L Cardinal-flower. 



This is listed as one of the poisonous plants by Dr. Schaffner. Cardinal- 

 flower is very abundant in the swamps along river courses in Eastern Iowa, 

 and N. Miss. Valley. 



Lobelia siphilitica L Blue Lobelia. 



Also listed as a poisonous plant by Dr. Schaffner. 



Lobelia spicata Lam. Pale Spiked Lobelia. 



Everywhere on prairies of the northern states. Probably poisonous like the 

 preceding. 



Fig. 19j. Greater Ragweed {Ambrosia tri- 

 fida). Said to cause hay fever. (Dewey U. 

 S. Dept. Agrl.). 



Lobelia inflata L Indian Tobacco. 



Widely distributed, occurring in woods. The leaves of this plant were used 

 by the Indians. The plant has long been used in medicine. L. inflata is very 

 poisonous and is used for its action upon the pneumogastric nerve; the toxic 

 doses produce exhaustion and dilation of the pupils. Death is usually preceded 

 by insensibility and convulsions. Contains the acrid lobeliin. 



Lobelia Kalmii L Kalm's Lobelia. 



Found in swamps from Nfd. to N. J. west to northern Iowa, Minnesota, 

 and Man. Probably poisonous like the preceding. 



