a group of trees is called a forest of trees
A small group of trees is called a "Grove".
A group of trees is called a wood from which a forest area could be called a woodland.
Orchard
a small group (5 letters)
Grove, Cluster, Copse
Probably a grove
A group of trees is called a grove or a stand.Birds gathered in the grove of trees.Weeping willow trees are usually solitary and do not grow in stands or groves.
A large group of trees is an orchard, a woods, a forest, or a jungle. A collection of trees of different types is called an Arboretum
In the U.K. a small group of trees is a 'copse', a slightly larger group is a 'woodland/woods'. and a very large group of trees is a 'forest'.
Dr. Pauline Ladiges is best known for resolving uncertainties about the naming of Australia's important group of trees. The group of trees are called the eucalypts.
A group of fruit trees is an orchard or a grove.