125 



Fig. 119. SPOROBOX.US ASPER (Michx.) Kunth,Enum. 1:210. 1833. (Agros- 

 tis (mper Michx. Fl. Bor. Am. 1 : 52. 1803.) PRAIRIE-GRASS.— A rather slen- 

 der perennial 3-12 dm. {l°-4°) high, with usually long, involute-filiform leaf- 

 blades and contracted, linear panicles 5-15 cm. (2'-6') long. Spikelets (a) 6-8 

 mm. (3"-i") long; empty glumes unequal, acute, shorter than the flowering 

 glume (6) , which is very acute, pubescent toward the base, as is the long, 

 acuminate-pointed palea, which much exceeds the glume in length.— In dry, 

 sandy soil, open woods and glades, Long Island to Florida, w^est to Texas, Mis- 

 souri, and Illinois. August to October. Avoided by stock, excepting when 

 young. 



