Yellow Morel

The yellow morel is the great spring mushroom of North America, fruiting for a few short weeks as the soil warms. Its cap is a true honeycomb of pitted, ridged chambers, tan to yellow-brown, and — this is the key structural feature — the cap is completely hollow and joined to the stem at its base, so a specimen sliced lengthwise is one continuous empty chamber from top to bottom.

That hollow, fully-attached structure is exactly how a real morel is told apart from the dangerous false morels. False morels (Gyromitra) have a wrinkled, brain- or saddle-like cap rather than an even honeycomb of pits, and inside they are chambered or stuffed with cottony tissue, not cleanly hollow. Half-free morels and Verpa species attach the cap only at the top. Morels favour disturbed and transitional ground — old orchards, burn sites, and dying elms — which is why they reward the observant walker rather than the bed-builder.