American Caesar's mushroom vs destroying angel: two white eggs, one deadly

Quick answer

Once open, the American Caesar's mushroom is red to orange with yellow gills and a yellow stem, while the destroying angel is pure white all over. Before they open, both are white eggs in a white cup. Sliced top to bottom, a Caesar's egg shows an orange cap and yellow gills; a destroying angel's egg shows a white cap and white gills.

Deadly lookalike

The destroying angel is deadly.

Unlike the American Caesar's 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

Two American Caesar's mushrooms with orange caps edged in yellow, standing in brown leaf litter
Edible
American Caesar's MushroomAmanita jacksonii

The tellBright red to orange cap with a lined edge, yellow gills, a yellow stem and ring, and a thick white sac-like 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 American Caesar's mushroom and the destroying angel
FeatureAmerican Caesar's MushroomDestroying Angel
Cap colorAmerican Caesar's MushroomBright red to orange, fading yellow toward the edge.Destroying AngelPure white, sometimes faintly cream at the center.
GillsAmerican Caesar's MushroomYellow to yellow-orange.Destroying AngelWhite at all ages.
Stem and ringAmerican Caesar's MushroomYellow, often with orange bands, and a yellow to orange ring.Destroying AngelWhite, with a thin white skirt-like ring that can collapse.
Cup at the baseAmerican Caesar's MushroomA large, thick, white sac.Destroying AngelA white, membranous sac around a bulb, often buried.
Cap edgeAmerican Caesar's MushroomLong lines (striations).Destroying AngelSmooth.
Egg, sliced top to bottomAmerican Caesar's MushroomOrange cap and yellow gills inside.Destroying AngelWhite cap and white gills inside.

FAQ

Common questions

Do Caesar's mushrooms and destroying angels grow in the same woods?

Yes. Both grow on the ground in eastern oak, pine and mixed hardwood forests in summer and early fall.

Is a white egg in the woods a Caesar's mushroom?

It cannot be told from the outside. Only a lengthwise cut shows whether the developing cap and gills are orange and yellow or white.

Sources

Where these facts come from

  1. Amanita jacksonii

    MushroomExpert.com

  2. Amanita bisporigera

    MushroomExpert.com

  3. Destroying Angel

    Missouri Department of Conservation

Waitlist

Hear when it opens

We will send one email when Mushrooms.id opens, and nothing else.

Email us to join

This opens your email app with the request written for you. Send it and we add you to the list. No email app? Write to hello@mushrooms.id with the subject “Add me to the Mushrooms.id waitlist”.