Destroying angel vs horse mushroom: two large white mushrooms with rings

Quick answer

The destroying angel keeps white gills, prints white and has a white sac-like cup around a bulb at the stem base; the horse mushroom's gills go from whitish or grayish to chocolate brown, it prints chocolate brown, it has no cup, and it smells of anise or almonds. Young horse mushroom gills are covered by a veil and pale, so on a young button only the base tells them apart.

Deadly lookalike

The destroying angel is deadly.

Unlike the horse 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

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.

Two white horse mushrooms with smooth, rounded caps among fallen leaves
Edible
Horse MushroomAgaricus fissuratus

The tellLarge white cap that slowly bruises yellowish, grayish pink to brown gills, a large ring with a cogwheel pattern beneath, and an anise smell.

How they differ

Differences between the destroying angel and the horse mushroom
FeatureDestroying AngelHorse Mushroom
GillsDestroying AngelWhite at all ages.Horse MushroomWhitish to grayish, then chocolate brown.
Spore printDestroying AngelWhite.Horse MushroomChocolate brown.
Stem baseDestroying AngelA bulb in a white, membranous sac-like cup, often buried.Horse MushroomSlightly swollen, with no cup.
RingDestroying AngelThin and skirt-like, can collapse or disappear.Horse MushroomLarge, with a cogwheel pattern on its underside.
SmellDestroying AngelFaint.Horse MushroomSweet, of anise or almonds.
BruisingDestroying AngelFlesh unchanging.Horse MushroomCap slowly bruises yellowish.
HabitatDestroying AngelWoods and lawns near oaks, beech, birch and pines.Horse MushroomPastures, meadows, lawns and grassy clearings.

FAQ

Common questions

How do you tell a horse mushroom from a destroying angel?

By the gills and spore print: chocolate brown for the horse mushroom, white for the destroying angel. The destroying angel also has a cup at the base.

Do horse mushrooms have a cup at the base?

No. The stem base is slightly swollen but has no sac-like cup. Field guides treat a white mushroom with white gills, a white spore print and a cup as a possible deadly Amanita.

Sources

Where these facts come from

  1. Amanita bisporigera

    MushroomExpert.com

  2. Destroying Angel

    Missouri Department of Conservation

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