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Fig. 499. Avena fatua Linn. Sp. PL 80. Wild Oat. — An erect, 

 glabrous annual 6 to 12 dm. high, with flat leaves and spreading 

 panicles of large oat-like, nodding spikelets. Spikelets 2-to 4- 

 flowered, with long (1.5 to 2 cm.) empty glumes (a) and pubes- 

 cent flowering glumes (&) 12 to 18 mm. long. Awns nearly twice 

 as long as the spikelets. — Fields and waste places from Minnesota 

 westward; abundant in grain fields on the Pacific slope. [Intro- 

 duced from Europe.] June-September. 



