205] FLORA OF BOULDER, COLORADO 57 



Order 9. POALES. 

 Family 12. POACEAE R. Br. Meadowgrass family. 



27. SCHIZACHYBIUM Nees. Bunch-grass. 



37. S. scoparium (Michx.) Nash [Andropogon scoparius 

 Michx.]. Broom-grass. 



Common in dry plains and mesas; occasional in the lower 

 foothills, 5100-6300 ft. (Daniels, 478). 



New Brunswick to Saskatchewan; Florida to Texas. 



28. ANDROPOGON L. Beard-grass. 



38. A. furcatus Muhl. Turkey-foot grass. 



Common on the plains, mesas and foothills, 5100-8000 ft. 

 (Daniels, 512). 



Maine to Saskatchewan; Florida to Texas and Colo- 

 rado. 



39. A. chrysocomus Nash. Golden beard-grass. 

 Common on the plains and mesas, 5 100-6000 ft. (Daniels, 



486). 



Nebraska to Colorado; Kansas to Texas. 



29. SORGrHASTETJM Nash. Indian grass. 



40. S. nutans (L.) Nash [Chrysopogon nutans (L.) Benth.]. 

 Nodding Indian grass. 



Frequent on the plains and mesas, 5100-6000 ft. (Daniels, 



655)- 



Ontario to Manitoba; Florida to Arizona. 



30. SYNTHERISMA Walt. Crab grass. 



41. S. sanguinale (L.) Dulac. [P mi! cum sanguinale L.]. 

 Finger grass. 



Along roadsides, and in yards and fields, still uncommon, 

 5300-5700 ft. (Daniels). 



Old World, thence to the New. 



31. PANICTIM L. Panic-grass. 



42. P. capillare L. Witch grass. 



Along roads and railroads, and in yards and fields, appear- 

 ing as if introduced, 5 100-6500 ft. (Daniels, 586). 



