GRASSES OF IOWA. 



149 



description. 

 Timothy. Herd's Grass. 



Culms simple, I to 3 * eet 

 (2-7 dm.) high, panicle 1 to 

 4 inches (2-8 cm.) long, 

 very densely many-flowered. 

 Empty glumes about 1 line 

 (2 mm.) long, the strong, 

 ciliate keels projecting into 

 sharp, mucronate points, 

 which are shorter than the 

 glume. Floret entirely con- 

 cealed within the outer 

 glumes, the stamens and 

 feathery stigmas prot Hid- 

 ing from the apex. Wide- 

 ly cultivated and com- 

 pletely naturalized in fields, 

 wayside and waste grounds ; 

 throughout the United 

 States and British America. 

 June to August. 



Timothy occurs in all 

 parts of Iowa. It was early 

 introduced by Iowa farmers 

 because of its excellent quali- 

 ties as a forage plant. 



Fig. 107. PJileum pratense—a, empty glumes; 

 b, the floret showing three stamens and two stig 

 mas. Div. if Agros. U. S. Dept. Agrl.) 



Ioua. Muscatine, 

 3720, Gridley 3241, 

 Hawarden, Jefferson 

 Minnesota-Iowa line 



Council Bluffs 1281, 

 mel) ; 3046 and 306 

 King) ; Clinton, 269 

 (Ball) ; Ontario, 3281 



DISTRIBUTION. 



40 (Ball) ; Lawler (P. H. Rolfs) ; Armstrong 

 Mason City 3240 and 3213, Ceylon 3309, 

 , Mason City, Carroll, Elmore, Minn., 



661, New Albin 849, Ledyard, Logan, 



Sioux City, Council Bluffs 1304 (Pam- 



1 Pilot Mound, 31 45 Steamboat Rock (Miss 



(Ball); Marshalltown (Eckles) ; Wheatland 

 3 (Faurot) ; Armstrong, 746 (Pammel and 



