GRASSES OF IOWA. 



29 



lins, La Poudre River, Pammel and Johnson), in Canada from Ontario 



to Saskatchewan. 



2. ANDROPOGON HALLII. 



Andropogon Hallii. Hack. Sitz. Akad. Wiss. Wien 89: 127. 1884. Wat- 

 son and Coulter. Gray. Man. Bot. 633. 1890. (6th ed ) Beal. Grasses of N. 

 A. 2: 54. 1896. Nash in Britton and Brown, 111. PI. 1: 101. /. 218. 1896. 

 Scribner. Bull. U. S. Dept. Agrl. Div. Agros. 17: 26 / 319. 1899. 



DESCRIPTION. 



Turkey Foot Grass, 

 Colorado Saxd Grass. 

 Hall's Beard Grass. A 

 stout, glabrous perennial, 

 2 to 7 feet (4-10 dm.) 

 or more high, with rather 

 long, the lower 4 to 8 

 inches (10-20 cm.), flat 

 leaves and stout racemes, 

 which are in pairs, or 

 in threes, and 2 to 3 

 inches (5-8 cm.) long. 

 Sessile spikelet about 4 

 lines (8 mm.) long, with 

 the first glume ciliate along 

 the keel and pilose-hairy 

 towards the apex. Awn 

 shorter than the spikelet, or 

 wanting. Dry, sandy soil. 



North Dakota, Montana 

 southward to Kansas, 

 Texas and New Mexico. 

 In western Nebraska and 

 westward it is a valuable 

 grass for stock. July to 

 September. This species is 

 not native but has been in- 

 troduced near Muscatine. 



W a 



Pig. 21. Andropogon Hallii. For details, see fig. 

 20. Div. Agrl. U. 8. Dept. Agrl 



DISTRIBUTION. 



Iowa. Muscatine, 1417 (Barnes and Miller). 

 North America. Iowa, Kansas, Nebraska, Montana and New 

 Mexico. 



