Plants and mushrooms

Yellow staining mushroom

Common name		Yellow staining mushroom
Botanical name		Agaricus xanthodermus
Other common names		Yellow stainer
Family		-
General description		These small-to moderate-capped fungi are common in lawns and garden beds, often clumped or in fairy rings. The caps are pure white to brownish, 3–12 cm diameter, at first hemispherical with a flattened apex, later convex. Caps are smooth or scaly, usually with fragments of veil membrane at the edge. The gills are free of the stem, crowded, whitish becoming pink and then brownish-black. The slender stem is white or yellowish, swollen and hollow at the base, and usually with a membranous white or yellowish double ring at the top. When whole specimens are removed, or the stem is cut near the base or bruised, an immediate vivid chrome yellow reaction occurs, fading later to a dirty brown. The odour is strong, unpleasant, similar to iodine or kerosene, and is more intense on cooking. The taste is mild.
Flowers		-
Leaves		-
Fruit/Berries		-
Other		-
Symptoms		Symptoms can begin immediately or up to two hours after the meal, and may include intense nausea, vomiting, diarrhoea, and abdominal pains.
Toxicity category		2
Warning		Seek urgent medical attention for any ingestion.