As its name suggests, birch bracket fungus grows on birch trees.

The fungus grows to 7 cm wide and 5 cm thick, projecting up to 5 cm from the substrate.

The fruit ends up being soft and having an off flavor because the fungus grows into the fruit.

The fungus grows throughout the xylem of the tree, preventing the flow of water and nutrients throughout the plant.

Since the fungus grows on tissue surfaces rather than inside epithelial cells, topical applications of oils and other compounds are recommended.