290 



BOTANY OF CROP PLANTS 



''suckers" or "tillers" are produced. The amount of 

 branching depends upon the thickness of seeding; the plants 

 branch freely when not crowded and feebly when crowded. 

 The young stems vary from green to red, and turn brown 

 with age. 



c^m 





Leaves.- The leaves are ahernaLely arranged on the stem 

 and characteristically hastate (halberd-shaped) (Fig. no), or 

 triangular heart-shaped; they may be sessile or short- 

 petioled, and bear an ocrea (Fig. 1 10), which soon falls oil. 



