Death Cap mushrooms are expected to grow across the ACT following heavy rain.
The mushrooms, which are lethal if ingested, often grow near established oak trees and can be found when there is wet weather.
Chief Health Officer Dr Kerryn Coleman is urging Canberrans and anyone visiting the region not to pick or eat any wild mushrooms.
All mushrooms should be purchased from a reputable supplier.
READ MORE:Storm, colder weather ahead in Canberra
People who find mushrooms in a public area should report it to Access Canberra by calling 13 22 81 and keep children and animals away from them as it is dangerous to touch with bare hands.
Symptoms of Death Cap mushroom poisoning occur about six to 24 hours or more after eating the mushrooms. Symptoms include stomach pains, nausea, vomiting and diarrhoea.
Symptoms may subside for one to two days but by this stage the toxin will have already caused serious liver damage. It can cause liver failure and death.
In case of poisoning, call the Poison Information Centre on 13 11 26.
