174 



GRASSES OF IOWA. 



4. AGROSTIS INTERMEDIA. 



Agrostis intermedia Scribn. Bull. Univ. Term. Agrl. Exp. Sta. 7: 76. 

 f. 97. 1894. 



DESCRIPTION. 



Upland Bent Grass. A slender, perennial grass, 2 feet (5 dm.) 

 high, culms erect, or geniculate at the lower joints. Sheaths smooth, 

 ligules 1 to 3 lines (2-6 mm.) long; leaf-blade 1 to i-J lines (2-3 mm.) 

 wide, 4 to 6 inches long, scabrous. Panicle oblong, pyramidal, 6 to 8 



Fig. 123. Agrostis intermedia— &, spikelet; b, sterile glumes; c, stamens and pistil. 

 (Charlotte M. King.) 



inches (12-16 cm.) long, with weak and slender branches (as compared 

 with A. elata) ; primary branches in clusters of two to seven at a node, 

 branching again below the middle. Spikelets about 1 line long, scattered 

 above the middle of the branches. Empty glumes thin, sub-equal, Ian- 



