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Fig. 51"). Eragrostis obtusiflora Scribn. U. S. Dept. Agr., Div. 

 Agros. Bull. 8 : 10, i'l,ite.5. May. 1897. Mexican' Saf-t-ckass. 

 A rigid, erect, bnuichiiig perennial 3 to 5 dm. liigh, from strong, 

 scaly rootstoeks, with stitl", pungent-pointed leaves, and more or 

 less spreading panicles s to 11 cm. long. Spikelets 5- to 12- 

 flowered, 7 to 15 mm. long, the rigid llowering glumes obtuse and 

 about 4. .5 mm. long. .Sandy, alkaline soil, Arizona. Resembles 

 salt-grass {Distichlin spicata) in habit. August, September 



