Pipe trees are a type of plant in Mixel Land.
At least seemingly non-organic, the pipe trees are very small networks of steam pipes rooted to the ground with leaves, and some with fruit, such as a coconapple.
- They can be seen in multiple episodes that take place outside of buildings in Mixel Land.
- It is unknown how they are able to produce organic fruit and leaves. It is also unknown how the pipes have been placed there: naturally or hand planted.
- The name "Pipe Tree" is possibly a mix of the word "pipe" and the real life type of tree, a pine tree.
- The pipe trees, along with the rest of the environment, were destroyed, albeit temporarily, in Pothole.
- Calling All Mixels confirmed their name.
- Actual sewage pipes exist in the show, as seen in Hot Lava Shower. It unknown if the trees are connected to them in a way.