229 



Fig. 223. COTTEA PAPPOPHOROIDES Kunth, Rev. Gram. 1 : 281. t. 52. 

 1835. COTTA-GRASS.— An erect, branching perennial 3-6 dm. (P-2°) high, 

 with narrow, flat, pilose leaves and oblong, open panicles 9-18 cm. (3^'-7') 

 long, hoary-pubescent throughout; spikelets 6-8 mm. (3"-4'0 long, 2 to 6 

 flowered; empty glumes (a) nearly equal, 4 mm. (2") long, pubescent, 'the first 

 irregularly 3-toothed at the apex, the second acute or short-awned; flowering 

 glumes (5, c) pubescent at base, 9 to 11 nerved, terminating in as many alternat- 

 ing mucronate and aristiform lobes. Palea {d) lanceolate, 2-nerved, pubescent 

 on the nerves.— In canyons, western Texas to Arizona. (Mexico and South 

 America.) August to October. 



