Red fly agaric / brown fly agaric / panther agaric
Amanita muscaria var. muscaria / var. regalis / pantherina
(Norwegian: Rød / Brun / Panter fluesopp)
These mushrooms have white gills and a stem with a ring. The base of the stem is bulbous. The cap is reddish or brownish in colour, usually with white spots.
These three agaric mushrooms contain a toxin that affects the nervous system. The symptoms usually appear within a period of ½ - 3 hours after ingestion. Small amounts ingested may cause confusion, dizziness and stomach upsets. Poisoning is rare, but ingesting a larger amount can cause muscle tremors and other symptoms requiring hospital treatment.
Orange birch bolete
This bolete has a reddish-brown cap and black scales on a white stem. The flesh of the mushroom darkens when cut. The mushroom is common throughout the country.
Orange birch bolete is edible if heat-treated for a minimum of 15 minutes. Orange birch bolete that has not been heated sufficiently is probably the mushroom that causes most cases of stomach upsets in Norway. Nausea, vomiting, diarrhoea and abdominal pain typically occur a few hours after ingestion. The symptoms usually pass within 1-2 days. Ingestion of large amounts may cause severe gastric distress and require hospitalisation.
This mushroom has a brown cap with an inrolled rim, brown stem and gills that become dark when applying pressure. Brown roll-rim is very common.
Brown roll-rim contains several different toxins and can produce varying symptoms. Vomiting, diarrhoea and abdominal pain may occur ½ - 3 hours after ingesting raw mushrooms. Following repeated ingestion of heath-treated Brown roll-rim there have been observation of serious poisoning with damage to blood cells and kidneys.