Old School RuneScape Wiki
For other uses, see Mushroom (disambiguation).

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A bittercap mushroom (or bittercap) is a type of fungus, they have a few different uses.

Obtaining bittercap mushrooms

It may be grown from a bittercap mushroom spore (taking up to six hours to grow) by players with level 53 Farming in the mushroom patch near Canifis (closest fairy ring to this is CKS). This may yield up to six mushrooms. You do not need a spade in your inventory to harvest this item. 58 experience is acquired for harvesting one mushroom, for a total of 348 XP.

Bittercap mushrooms can also be obtained from chopping Sulliuscep mushrooms on Fossil Island.