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Edibility
Choice
Lookalike Danger
4 / 5
Habitat
🔥 Burns, ash, elm
Season
Apr – May🌱 Now
"The spring prize. Rises in post-fire flushes and dying elm groves. Always cook — false morels kill."
Mushroom ID is a rule-out game. Every entry below describes something that looks similar — learn the differences before eating.

True morels have HONEYCOMB-PITTED caps and are HOLLOW end-to-end. False morels (Gyromitra) have BRAIN-LIKE WRINKLED caps and are SOLID or chambered inside. Gyromitra contains MMH — potentially lethal even after cooking.

Both are edible, but the half-free has a cap only attached HALFWAY down the stem (lift the cap skirt to check). Cook both thoroughly.
This species is found with or partners with the following hosts. Ectomycorrhizal hosts (green border) form a root-level partnership; ericoid / arbutoid shrubs (purple border) share the same mycorrhizal networks.

Morel indicator (dying elms). Elm oyster host.

Morel indicator (dying ash from EAB damage).

Year-1 and year-2 post-fire burn scars — black morel, yellow morel, and other pyrophilous fire followers.
Honeycomb-patterned cap that is hollow from top to bottom when sliced. One of the most prized spring mushrooms. Must be thoroughly cooked — toxic raw.
Cottonwood drainages and disturbed ground at lower elevations (5,500-9,000 ft). Fruits as snowmelt progresses uphill. Often found near dead or dying elm, ash, or cottonwood.
Min Soil Temp
48°F
Moisture Need
rain 0.5in 3d
Drought Tolerance
moderate
Elevation Range
0–14,179 ft
DEADLY — contains gyromitrin which converts to monomethylhydrazine (rocket fuel). Brain-like wrinkled cap, NOT honeycomb. Stem is not completely hollow.
Generally edible but can cause GI issues in some people. Cap hangs like a skirt from the top of the stem; stem is stuffed with cottony fibers, not hollow.
Southern bottomland hardwoods — water oak, loblolly, and dying elm flats. Earliest morels in the Deep South. Check once soil temps hit the mid-40s after a rain.
Photograph it and log your observation on iNaturalist. The community can help confirm your ID — always get confirmation before eating.