Glowing fungus

Glowing fungus, or Flammulina velutipes, is a mutated variant of the pre-War fungus. Common in temperate areas (especially in caves and caverns), the medicinal properties of the original mushroom have been enhanced by radioactive exposure, allowing it to be used in a variety of potent medicines, such as herbal treatments or even post-War RadAway. The mushrooms have also developed a distinct bioluminescence, making them easily identifiable. Flowing fungus is possibly the most prevalent type of flora in the former United States, able to be found in Appalachia, the Capital Wasteland, the Commonwealth, the Island and as far west as the Mojave Wasteland.