The poisonous
false morels (various species of
Gyromitra and
Helvella) as well as the not-recommended
Verpa bohemica differ in that the cap and stem do not form a single, continuous, hollow chamber. All true morels (species of
Morchella) are edible when properly cooked. A number of other true morels can have a similar appearance, and are sometimes difficult to differentiate in the field, but do not generally match all the key characteristics.
See also
M. brunnea and
M. tridentina, which also grow in non-burned forests.