What does the largest mushroom in the world look like? The largest mushroom shape in the world.

This mushroom is the largest creature in the world. In Marul National Park in Oregon, USA, there is a 2400-year-old giant mushroom. Its underground roots cover 890 hectares of land.

2. Oregon does have the largest known fungus in the world, but it is not a mushroom, and the edible fruiting body is not that big.

3. In fact, the word "mushroom" has many meanings, which can refer to the fungus species of Agaricus of Agaricus of Basidiomycetes, the common name of the fruiting body produced in the sexual reproduction stage of fungi, and the edible fruiting body of fungi.