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liG. 617. Elymus condensatus Presl, Reli((. Haeuk. 1:265. 

 1830. Giant Rye grass. — A stout, erect pereunial 10 to 24' dm. 

 high, often growing in great clumps or bunclies, with long, rather 

 rigid, flat leaves and dense spikes 10 to 30 cm. long. Spikelets 3 to 6 

 flowered, with subulate empty glumes (a) and smooth, mucronate- 

 l)ointed flowering glumes 8 to 10 mm. long. — Usually moist and 

 alkaliue soils, Nebraska aud the Dakotas to Washington and Ore- 

 gon, south to Arizona and California. June-September. 

 10819— No. 17 21 



