Photo: Bigredwine1, CC BY-SA 4.0 (via Wikimedia Commons)
Shaggy Mane
Coprinus comatus
Also known as Shaggy ink cap, Lawyer's wig, Judge's wig
Key benefits
✦Traditional uses
✦Long before it reached refined kitchens, the shaggy mane was gathered by foragers who knew it had to be eaten the same day it was picked, since its cap begins dissolving into black ink within hours of being cut. That very ink, produced by the mushroom digesting itself, was collected and used as a real writing fluid in earlier centuries, valued for being nearly impossible to forge or wash away once dry. In parts of East Asian folk medicine, shaggy mane has traditionally been used to support healthy blood sugar levels and gentle digestion, brewed as a simple broth or decoction for those needing nourishing food. It remains a favorite of foragers today precisely because it cannot be shipped or stored, making the fresh mushroom something you can only really know by finding it yourself.
How to grow & use it
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“When you want a woodland delicacy so fleeting it must be eaten the very day it is found.”
The shaggy mane's cap dissolves itself into a pool of black ink within hours of being picked, a process called deliquescence, and that very ink was once collected and used as genuine writing fluid, prized because documents signed with it were said to be impossible to forge.
Shaggy mane should be eaten young and fresh, within hours of picking, before the cap begins to blacken and dissolve. Correct identification matters since it grows near look-alike fungi, and some foragers avoid alcohol the day they eat it because related ink caps contain a compound, coprine, that can cause flushing and a racing heart. It has a traditional use for blood sugar support, so anyone on diabetes medication should check with a healthcare provider before eating it regularly.