Bluecap

Dubbed the “grain of the Ways,” a bluecap is inedible, but its spores can be ground to make a nutritious, bland flour. Bread made from bluecap flour is known as sporebread or bluebread. One loaf is equivalent to 1 pound of food.

The caps of bluecap mushrooms could be prepared by those with the correct herbalism knowledge to make a stew that would neutralize poison