SCP-386 is a form of mushroom that appears to have highly regenerative processes, and is highly resistant to physical damage. Single units of SCP-386 grow from individual microscopic spores. These spores grow and reach maturity within four days. Spores have been observed to grow without water, sunlight, or any form of nutrients, and can remain viable even after exposure to high heat, vacuum, radiation, and extreme kinetic force. SCP-386 produces no hyphae, and the means by which it gathers the energy for growth is unknown. A mild acid (pH 4) appears to be secreted in small quantities by the cap, identification of which has been inconclusive.