Mycelium Mushroom

A complex structure of a mushroom, looking similar to a network of roots it can be found with a red in color top shifting to a white base with black spots on the inside.
Boiling this mushroom and drinking it will allow you to see in complete darkness for 4 Hours

after ingesting the mushroom or an extract of it, a creature must make a DC 13 constitution saving throw or be poisoned. Once a creature is poisoned, it takes 3d6 poison damage on a succesful save they are able to see in complete darkness for 1 hour

Uses:
Potion of Resistance (Poison) Antitoxin Tea of Darkness

Locations:
Forests