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MAINE AGRICULTURAL EXPERIMENT STATION. 



THE BUFFALO BUR. 



Solanum rostratum, Dunal. 

 (Order Solanaceae; Night-Shade Family.) 



HISTORY. 



The Buffalo Bur is a native of the western plains, close to the- 

 mountains, from Mexico northward to Dakota. It was spread 

 by buffaloes and for that reason has been called Buffalo Bur. 

 Since the setlement of the country it has spread eastward along 

 road sides and to long distances in seed and packing materials. 

 It is now found in most of the states in the Mississippi valley 

 west of the river and in many of the states farther east. It has 



also appeared in Europe where it threatens to become a trouble- 

 some weed. It was detected by Mr. C. C. Carll, where western 

 grain had been screened, at Buxton, Me., in September, 1896. 



