Black witch's butter
Exidia glandulosa · 黑耳
Occasional黑耳科❓ Edibility Unknown
Edibility is unknown and should be treated as poisonous.
The same species can be described differently across regions and stages of maturity, and countless look-alike species cannot be told apart by eye. Never use the information on this page to judge whether a real mushroom is safe to eat.
How to Tell
- Black, gelatinous mass, finely warted on the surface
- Swells and glistens when wet, shrinking to a hard crust when dry
- Grows on dead branches of oak and other hardwoods
ID notes are compiled by AI from public sources, not reviewed by a mycologist, for learning only — never a basis for foraging.
Basics
- Family
- 黑耳科
- Hymenium
- Smooth
- Grows On
- Wood
- How Big
- 2–6 cm (overall size)
- Encounter Rate
- Occasional
- Habitat
- Fallen branches of oak and other hardwoods
Easily Confused With
Black wood earEar-shaped and gelatinous, dark brown to blackish brown; translucent and rubbery when wet
Jelly earEar-shaped and gelatinous, reddish brown, finely hairy surfaceFun Fact
When wet it's a blob of black jelly; dried out, it shrinks to a thin black crust pressed flat against the bark — then swells back to life the next time it rains.
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