Under-wood is a term used to describe the dense, low-level vegetation that can be found growing beneath trees in wooded areas. There are a number of different synonyms that can be used to describe this type of vegetation, including underbrush, understory, and undergrowth. These terms all refer to the same type of dense vegetation that is found growing beneath trees in wooded areas, and can include a variety of different plant species such as shrubs, ferns, and low-growing trees. Whether you are exploring a forest, hiking through the woods, or simply enjoying a walk through a park, the under-wood can be a fascinating and diverse ecosystem to explore.