22 Nebraska Agricultural Exp. Station, Research Bui. 7. 
Fig. 8. — A bush bean with the twining habit exhibited in the very long, 
upper — fifth — internode . 
to the first four to eight internodes of pole beans, in which twining 
is Uttle developed, particularly if growth is slow. 
Bush beans usually have many branches and pole beans few 
branches, but this difference cannot be used to characterize 
definitely the two groups. When closely crowded together, bush 
beans often fail to develop branches. The shorter pole beans 
commonly have numerous branches and the taller kinds rarely 
fail to produce several branches. Degree of branching is in con- 
siderable part a varietal characteristic in both bush and pole 
beans. 
Finally the bush and pole classes of beans differ in height. 
This naturally follows from the determinate and indeterminate 
