Tree Spire

The Tree Spire is a heat-emitting structure found commonly in the Tree Spires and near the border of the Thermal Spires.

Appearance
The Tree Spire has many branches that stem from a single thick trunk. Each branch has a hole on top that emits a black smog-like substance similar to that emitted by Hydrothermal Spires. The Tree Spire is also covered in Coral that may be feeding off of nutrients emitted by the Tree Spire.

A remarkably large Tree Spire can be found in the center of the Tree Spires biome, being far larger than other Tree Spires

Gallery
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Trivia

 * While not stated, it is implied that the Tree Spires are related to both the Tree Mushrooms and Pyrocoral. With the former because of it's hardy branches and the latter because of it sustaining itself through thermal energy.