133 



Fig. 429. Stipa pringlei Scribn. Contrib. Nat. Herb. 3 : 54. 

 1892. (Oryzopsis pringlei Beal.) Pringle's Feather-grass. — A 

 slender, erect, caespitose perennial 6 to 12 dm. high, with long, 

 flat leaves and loosely few-flowered panicles 15 to 20 cm. long. 

 Spikelets 8 to 10 mm. long, with acute, 5-nerved empty glumes 

 (a), and pubescent flowering glumes (6). Awn slender, about 20 

 mm. long. — Dry slopes, Texas, to Arizona and California. [Mex- 

 ico.] July-October. 



