However, here are some options that could be used, depending on the context:
Descriptive:
* Thicket: This is a common option, suggesting a dense and tangled group of bushes.
* Clump: This implies a smaller, more compact group.
* Stand: This is a more formal term, suggesting a large, well-defined area of bushes.
* Grove: This is usually used for trees, but could be applied to a group of larger, more substantial bushes.
Figurative:
* Boscage: This is a more poetic term, suggesting a lush and picturesque group of bushes.
* Maze: This works well for a dense and confusing group of bushes.
Ultimately, the best collective noun for bushes depends on the specific situation and the desired effect.