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The Tree Mushroom is a type of huge arboreal coral found exclusively in the Mushroom Forest.

Larger Tree Mushrooms sometimes have chunks of Sandstone Outcrops at the top. Often they have Lithium on the trunk.

The player can obtain Fungal Samples from its mushroom caps by cutting them or by colliding them with the Seamoth or the Cyclops.

Spoiler alert: This section will reveal story-related material if expanded.

The Fungal Sample is an ingredient for Hatching Enzymes.


The Tree Mushroom is a huge coral structure with branches coming off of its trunk, each adorning mushroom caps resembling large real life table corals. On the tree's trunk features many small life forms growing on it, such as Tree Leeches or Grue Clusters.

The Tree Mushroom's size greatly varies, with some capable of reaching up to 100 meters tall.

Giant Tree Mushroom[]

In the Northwestern Mushroom Forest, there lies a single dominant Giant Tree Mushroom, near Lifepod 13, spreading its roots throughout the entire area.

This Giant Tree Mushroom is unique in various ways. Not only can dozens of Shale Outcrops be found on its stem, top, branches, and roots, but it is also the only explorable Tree Mushroom. Aside from the small cave at its base, there is also a larger cave that goes all the way from the top to the base of the tree, with two entrances located at the top and the base. In this cave, more Shale Outcrops and plants native to the Mushroom Forest can be found, with Grue Clusters and Tree Leeches lighting the way.

Data Bank Entry[]

Analysis of these large organic structures reveals a microcosm of co-operating, co-habiting and competing lifeforms.

The main trunk is a species of coral, some colonies up to 50,000 years old. The caps which line it share more in common with earth fungi. Other organisms grow on the structure wherever there is space and light.

Surrounding waters are dense with herbivorous lifeforms in the 1mm - 10mm range, to the extent that larger herbivores appear to have mostly abandoned the area.

Assessment: Exploitable



  • The Tree Mushrooms used to be known as Coral Trees according to the game files.
  • The Giant Tree Mushroom was originally planned to be used within the Deep Grand Reef or Bulb Zone, but focus quickly shifted to dedicating a new biome to the trees. [1]


  1. Original model of the Giant Tree Mushroom