VEGETATIVE ORGANS OF GRASSES 



351 



develojp interaiiediate buds on the rhizome at the nodes. Roots 

 are toaiigh, long and very fibrous. Leaves dark green, folded in 

 the bud. Blade broadened at collar, flat, margin slightly scab- 

 rous, nerves conspicuous. Sheatlh smooth, white to light green 



Fig'. 126. — Andropogon furcatus. 

 terminal node from new rhizome. 



Blue Stem. A, ligule ; B, old culms ; C, 



at base. Ligule slightly pointed in middle when blade is folded, 

 membranous, short, continuous. Collar light green, becoming 

 very coiispicuous in older plants. Margin of collar slightly hairy. 



Andropogon nutans. Indian Grass. Figure 127. 



A stout perennial, having a long rest period. At the base 



