289 



Fig. 233. TRIODIA ALBESCENS Vasev, U. S. Dept. Agr. Div. Bot. Bui. 12^ : 

 33. pi S3. 1891. {SiegUngia albescens Kuntze, Rev. Gen. PI. 2 : 789 1891 )— 

 A c*.spitose, erect perennial 4-7 dm. (1^-2^°) high, withnarrow, flat leavesand 

 densely flowered, spike-like panicles 9-15 cm. (3i'-6') long. Spikelets («) 4-6 

 mm. (2"-3") long. 8 to 10 flowered; empty glumes nearly equal, the second 

 slightly larger, broadly ovate, acute, hyaline, 1-nerved, 3 mm. (U") long- 

 flowering glumes (6) rotund, somewhat emarginate, mucronate. hyaline' 

 smooth or nearly so, the midnerve slightly if at all excurrent. Palea (rj 

 broadly ovate, obtuse.— Texas. August to October. 



