a toadstool

It is a large, brown boletus that must weigh nearly five pounds. The top surface is covered in a thin layer of transparent slime that emits a weak, musty smell. Not the most delicious thing you have seen.

It is a toadstool.
It weighs six pounds.

You identify a toadstool.
It is food.
It weighs five pounds and eight ounces, and it is worth about twenty busc.
Its keywords are toadstool and mushroom.