DESCRIPTIVE MANUAL 



193 



Fig. 110-A. Distribution of Parosela. 



Rattle-box or Milk Vetch {Astragalus eanadensis L.)- 



Description. — A tall, erect, smooth or pubescent perennial^ 1-4 

 ft. high; leaves compound, leaflets , 21-27, oblong; flowers greenish 

 cream-colored in spike of variable length; pods crowded, snvooth, 

 terete, occasionally somewhat suleate; the seeds separate from the 

 pod, rattling, hence the common name. 



Distribvrtion. — ^Common in the northern Mississippi valley, east 

 to New York and south to Georgia. Common on'-iborders of thick- 

 ets, woods and native meadows. 



Extermination. — This weed is easily exterminated by cultivation. 



13 



