A group, especially of trees or flowers. (Cambridge Dictionary)
A clump of things such as trees or plants is a small group of them growing together. (Collins Dictionary)
A clump of things such as wires or hair is a group of them collected together in one place. (Collins Dictionary)
A group of things clustered together. (Merriam – Webster)
A compact mass. (Merriam – Webster)
A small group of trees or plants growing closely together. (Oxford Dictionaries)
A small, compact group of people. (Oxford Dictionaries)
Clump meaning. Spin Fold.
Clump. The Free Dictionary.