DESCRIPTIVE MANUAL 



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Whiteweed or Fleabane (Erigeron annuus Pers.). 



Description. — A sparingly pubescent annual 3-5 ft. high; leaves 

 thin, coarsely and sharply toothed, the lower one ovate, or ovate- 

 lanceolate, acute, and entire on both ends; heads corymbed; rays 

 white, tinged with purple. 



Distribution. — This weed occurs from New England to Texas. 

 Common in the Mississippi valley. Common throughout the state 

 of Iowa, particularly in timothy and clover meadows. This weed 

 is also naturalized in Europe. 



Extermination. — Both this and E. ramosus are easily exter- 

 minated by thorough cultivation. They are seldom troublesome out- 

 side of meadows, though in some parts of Iowa the meadows and 

 pastures are white with 'flowers of these species. 



Fig. 186. Whiteweed or Daisy Fleabane {Erigeron annuus). Common in clover 

 and timothy meadows. 

 (Photographed by Colburn. Drawings a and b by Charlotte M. King.) 

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