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Fig. 506. Triodia trinerviglumis Vasey. III. N. Am. Grasses. 

 1 ; : Xo. 40. 1891. Wiry Triodia. — A slender, erect, caespitose 

 perennial 6 to 10 cm. high, with narrow leaves and contracted, 

 spike-like panicles 8 to 16 cm. long. Spikelets 7- to 9-rlowered. 6 

 to 10 mm. long: flowering glumes (b) 4 to 5 mm. long and pubes- 

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

 west to Colorado and Arizona. June-September. 



