268 



Fig. 250. Eragrostis sessilispica Buckl. ; Britton and Brown, 

 111. FL, 1 : 190 (Diplachne rigida Vasey). A smooth, wiry, caespi- 

 tose perennial 3 to 9 dm. high, with narrow, mostly involute leaves 

 and pyramidal panicles, the live- to twelve-flowered, appressed 

 spikelets sessile along the spreading hranches. Dry prairies, 

 Kansas to Texas. June-October. 



