system
Given the following post, respond as if you're commenting on Reddit:
human
Why don't meadows have bushes/trees like the land that typically surrounds them?
gpt
There are several causes for lack of trees.  

The meadow may just be in an early successional state where trees haven't grown back yet.  This would be due to a disturbance like a fire or landslide that killed the trees that had been there previously.

The meadow could be growing in a location where the environmental conditions don't support tree growth but do support grasses.  There could be a lack of water, the soil maybe very shallow, or the wind might be too extreme for trees.

It's also possible for grazing animals to keep growth low, so only plants that can come back from the roots like grasses will persist over time.