Black morel vs false morel: how to tell them apart

Quick answer

A black morel is one continuous hollow chamber inside, with a conical cap of pits set between dark, mostly vertical ridges; a false morel has a wrinkled, brain-like reddish-brown cap and is chambered or cottony inside. Dark color alone proves nothing, since false morels can be chestnut to nearly black.

Toxic lookalike

The false morel is toxic.

Unlike the black morel, the false morel (Gyromitra esculenta) contains gyromitrin, which breaks down into monomethylhydrazine. The University of British Columbia's Mushrooms Up! guide records symptoms starting 6 to 12 hours after a meal with stomach cramps, vomiting and watery diarrhea, usually resolving in 2 to 5 days; severe cases go on to liver and kidney damage, seizures, coma and, in a few cases, death. The same guide notes that sensitivity varies greatly between people. Heating the mushrooms releases the toxin as a vapor, which is also dangerous to breathe.

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 dark brown black morel with a ridged, pitted conical cap rising from dry leaf litter — Black MorelMorchella angusticeps

A reddish-brown false morel with a folded, brain-like cap on the forest floor — False MorelGyromitra esculenta

How they differ

Differences between the black morel and the false morel
Feature	Black Morel	False Morel
Inside when sliced lengthwise	Black MorelOne continuous hollow chamber from cap tip to stem base.	False MorelChambered or folded pockets, often with cottony tissue.
Cap surface	Black MorelPits between long, mostly vertical ridges linked by shorter cross-ridges.	False MorelWrinkled, lobed and folded like a brain, with no true pits.
Cap shape	Black MorelConical to narrowly egg-shaped.	False MorelIrregular and lumpy.
Color	Black MorelPits tan to olive-brown; ridges darken to dark brown or black with age.	False MorelReddish brown to dark chestnut, sometimes nearly black.
Where cap meets stem	Black MorelAttached at its lower edge, often with a slight groove.	False MorelThe lower edge touches the stem only in places.
Habitat	Black MorelHardwood forests and edges, often near white ash, tulip poplar and wild cherry.	False MorelConifer and mixed forests, often under pines.

FAQ

Common questions

Is a black morel a false morel?

No. Black morels are true morels in the genus Morchella and are hollow inside. False morels are Gyromitra species, with brain-like caps and chambered or cottony interiors.

Are black morels hollow?

Yes. Like every true morel, a black morel is hollow from the tip of the cap to the base of the stem when sliced lengthwise.

Do black morels and false morels fruit at the same time?

Both appear in spring. Black morels often come up earlier in spring than yellow morels in the same woods, and false morels fruit from March to June depending on latitude and elevation.

Sources

Where these facts come from

Morchella angusticeps (black morel)
MushroomExpert.com
Gyromitra esculenta
MushroomExpert.com
Gyromitra esculenta, false morel (Mushrooms Up!)
Beaty Biodiversity Museum, University of British Columbia
Morels
Missouri Department of Conservation

Keep checking

Read both pages in full

This page states what field guides record. It is not advice to eat, taste or handle anything, and a photo cannot settle edibility. If someone has eaten a wild mushroom that may be toxic, call poison control (1-800-222-1222 in the US) right away, before symptoms start: the deadliest species act hours later.

More comparisons

A yellow morel with a honeycomb-pitted cap standing among green leaves

Morel vs false morel

Toxic: False Morel

Sliced top to bottom, a true morel is hollow from cap tip to stem base. A false morel is chambered or cottony inside, with a brain-like cap.

Black morel vs morel

Black morels have dark, mostly vertical ridges and fruit earlier. Yellow morels keep pale ridges in a random honeycomb. Both are hollow inside.

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