​     Types of plants acording to the size of  the stem.

• ​TREES​ have a hard thick long trunk. Branches are far from the ground.​

 

• ​​BUSHES have a hard trunk but not as thick as trees. Branches are at ground level.​

 

• ​GRASS has a soft green stem, no trunk and it´s small (some are less than 1 cm.)​​‏​​. ​