 English vocabulary words for trees from EspressoEnglish.net Here's a diagram showing the parts of a tree. The roots are underground. They provide the support system for the tree. The main body of the tree is called the trunk. The trunk then divides into branches. And the leaves of course grow from the branches. The outside of a tree is covered in bark. Trees can provide shade from the heat and light of the sun. We find palm trees in tropical regions and pine trees in colder climates. Here are two more interesting types of trees, a willow and a birch tree. When you cut down or chop down a tree, what's left is a stump. Trees are cut down in order to provide lumber or timber. Both of these words refer to wood that will be used for building. The pieces of wood are called logs when they are still round and boards or planks after they have been cut into a flat rectangular shape. The loss of the world's forests is called deforestation. We need to plant trees in order to make up for the ones we cut down. If you want to learn hundreds of new words, check out the Vocabulary Builder course available at espressoenglish.net. Expanding your vocabulary is key to fluency and this course has two levels. Level one is for pre-intermediate and intermediate students and level two is for upper-intermediate and advanced. You can also buy both levels together at a discount. Visit espressoenglish.net, click on courses and look for the Vocabulary Builder.