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Oyster Mushroom

scientificPleurotus ostreatus
foundyear-round · on dead hardwoods
seasoncool, wet spells year-round

Shelves of soft white fans stacked up the side of a dead alder or cottonwood — the oyster mushroom is one of the most reliable and forgiving wild edibles going. It fruits in cold weather when almost nothing else does, and there's no dangerous white-gilled shelf fungus that grows quite like it.

Identifying

  • fan or oyster-shell shaped caps, white to tan to grey, in overlapping shelves on wood
  • gills run down onto a very short, off-center stem (or no stem at all)
  • soft, pliable flesh; a faint sweet anise-seafood smell
  • always on wood — logs, stumps, standing dead trunks

Facts

  • one of the few mushrooms that fruits through cold snaps, which makes it a winter staple
  • a rare carnivore — its mycelium paralyzes and digests tiny nematodes for nitrogen
  • the easiest gourmet mushroom to grow at home, but a wild flush off a big log beats any kit

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Oyster Mushroom