Seed Plants, Ferns, Fern Allies of the Austin Region 9 



Andropogon glomeratus B. S. P. 



Near the mouth of Barton Creek, along the stream. 

 Southern states. 



Schizachyrium scoparium Nash. (Andropogon scoparius Michx. 

 Broom Grass. Blue-stem. 

 In dry open ground, along railroad tracks and roadsides. 

 Widely distributed throughout the eastern and central states. 



Sorghastrum nutans Nash. Indian Grass. 



Waste ground along railroad tracks. A coarse grass, four or five 

 feet tall. 



Widespread in the eastern United States. 



Sorghum halepense Pers. Johnson Grass. 



Abundant everywhere in fields and waste places. 



Introduced from Europe and Asia. Widely distributed in the 

 southern and eastern states. 



Tribe Zoysieae 



Hilaria texana Nash. (H. cenchroides var. texana Vasey.) Creeping 

 Mesquite. 



Abundant on dry hillsides and in open ground along railroad tracks, 

 etc. 



From central Texas to Arizona and Mexico. 



Nazia aliena Scribn. Prickle-grass, Burdock-grass. 



Occasional in waste places. Along railroad tracks. 



Introduced from Europe and Asia. Abundant in the Rio Grande 

 Valley and near the Gulf Coast. 



Tribe Tristegineae 4 



Limnodea arkansana pilosa Nash. 

 Abundant in dry ground. 

 Louisiana and Texas. 



Tribe Paniceae 



Cenchrus tribuloides L. Grass Bur. Bur-grass. Sand Bur. (C. 

 carolinianus Walt, not C. tribuloides Britton and Brown.) 



Dry open ground. University campus, etc. Abundant and very 

 troublesome in lawns. 



Widespread throughout the eastern and central states. 



