Button mushroom vs destroying angel: how to tell them apart

Quick answer

Button mushrooms have gills that are pale pink in young buttons and turn chocolate brown, a chocolate brown spore print, and a plain stem base; the destroying angel keeps white gills at every age, drops a white spore print, and has a white sac-like cup around a bulb at the base, often buried in soil. A white button picked without its base, or seen in a photo, cannot be told from a destroying angel.

Deadly lookalike

The destroying angel is deadly.

Unlike the button mushroom, the destroying angel (Amanita bisporigera) contains amatoxins. The Missouri Department of Conservation records that symptoms often do not appear until 6 to 24 hours after eating, starting with vomiting, diarrhea and cramps, followed by kidney or liver dysfunction that can lead to death. The CDC explains that amatoxins halt protein production in cells, and that they are heat stable and not inactivated by cooking.

If someone has eaten a wild mushroom and feels unwell, or may have eaten one of these, call poison control now: 1-800-222-1222 in the US. Do not wait for symptoms.

Side by side

The tell for each

Agaricus bisporus

Photo coming

Edible
Button MushroomAgaricus bisporus

The tellFree gills that turn from pink to chocolate brown, a ring on the stem, and no cup at the base.

A slender, pure white destroying angel rising from brown leaf litter
Deadly
Destroying AngelAmanita bisporigera

The tellPure white all over, with white gills, a skirt-like ring, and a white sac-like cup around a bulb at the base.

How they differ

Differences between the button mushroom and the destroying angel
FeatureButton MushroomDestroying Angel
GillsButton MushroomPale pink in buttons, then chocolate brown to blackish brown.Destroying AngelWhite at all ages.
Spore printButton MushroomChocolate brown.Destroying AngelWhite.
Stem baseButton MushroomPlain, with no sac or cup.Destroying AngelA bulb in a white, membranous sac-like cup, often buried.
StemButton MushroomShort and thick, 1 to 3 inches (2.5 to 8 cm).Destroying AngelTall, 3 to 6 inches (7.5 to 15 cm), with a skirt-like ring.
Where foundButton MushroomCompost, manure, gardens and roadsides; grown indoors commercially.Destroying AngelWoods and lawns near oaks, beech, birch and pines.
SmellButton MushroomMild.Destroying AngelFaint.

FAQ

Common questions

Can a wild white mushroom be a button mushroom?

Yes. Wild Agaricus bisporus occurs in compost, manure and disturbed ground. Pink to brown gills and a brown spore print separate it from white Amanita species.

What does a destroying angel look like?

Pure white all over, with white gills, a skirt-like ring near the top of the stem and a white sac-like cup around a bulb at the base.

Sources

Where these facts come from

  1. Agaricus bisporus

    MushroomExpert.com

  2. Amanita bisporigera

    MushroomExpert.com

  3. Destroying Angel

    Missouri Department of Conservation

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