135 



Fig. 129. sporoboIjUS CONFUSUS (Fourn.) Vasey, Bui. Torr. Bot. Club, 

 15:293. 1888. {Vilfa confusa Fourn. Mex. PI. 2:101. 1881; V. mmulosa H. 

 B. K. Nov. Gen. et Sp. PI. 1 : 137. 1815, in part.) A slender, branching, tufted 

 annual 0.8-2 dm. (3'-8') high, with loose sheaths, flat leaves, and capillary, ovoid, 

 or oblong panicles 8-15 cm. (3'-6') long. Spikelets (a, b, c) 1 mm. (i") long; 

 glumes obtuse, the outer empty ones nearly equal and one-half to two-thirds as 

 long as the third or flowering glume (d).— Sandy banks of streams, moist places 

 in sandy plains, canyons, etc., Texas to California, and in Colorado and Mon- 

 tana. (Mexico.) July to September. 



