Minecraft wiki entry for Configured_feature, associated text: huge_fungus
 hat_state: The block to use for the hat.
Block state[show]
 decor_state: The block to use as decoration.
Block state[show]
 stem_state: The block to use for the stem.
Block state[show]
 valid_base_block: The block to place on top of.
Block state[show]
 planted: (optional) Defaults to false.