138 
THE FIRST BOOK OF BOTANY* 
And when only two or three feet high, whatever 
its shape, it is called an under-shrub. Slender, 
woody plants that can not hold themselves up, but 
depend on other objects for support, or trail along 
the ground, are called vines. 
Besides this separation of woody plants into groups 
depending upon size and shape, they are again divided 
into two sorts, called Evergreen and Deciduous. 
Fig. 232. 
Bush. 
Evergreen trees, shrubs, etc., keep their foliage 
all the year round. 
Decid'uous trees, shrubs, etc., lose their foliage in 
winter. 
So that in winter it is very easy to tell Evergreens 
from Deciduous plants. Look carefully at the foliage 
of Evergreens, and see if it resembles that of Decidu¬ 
ous trees. 
