171 



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Fig. 153. Aira praecox L. Early Wild Oat-grass. A tufted, 

 erect or ascending annual 2 to 12 cm. high, with a contracted 

 panicle 1 to 2 cm. long. Introduced and sparingly distributed in 

 the Middle States near the coast, growing in sandy soil. Also on 

 Vancouver Island. [Europe.] May-July. 



