210 



Fig. 506. Triodia trinerviglumis Yasey, 111. N. Am. Grasses. 

 12 : No. 40. 1891. Wiky Triodia. A slendei-, erect, crespitose 

 perennial 6 to 10 cm. bigb, with narrow leaves and toutracted, 

 pike-like panicles 8 to 16 cm. long. Spikelets 7- to 9-tlo\vered, 6 

 to 10 mm. long; flowering glumes ( ft) 4 to 5 mm. long and pubes- 

 cent on tbe nerves below. Dry soil, Missouri to Arkansas and 

 west to Colorado and Arizona. .Tune-September. 



