Shaggy Mane

  • cap is tall and elongated
  • cap has shaggy, upcurving scales
  • cap is black and inky when old
  • spore deposit is blackish
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Look-alikes in California

When young, the poisonous Coprinopsis picacea can have a similar appearance. It differs in that cap has a glossy, dark brown base color covered overlain with white fibrils. The dark base color becomes apparent in maturity, when the white fibrils become patchy. The inedible Coprinopsis lagopus has a similarly elongated cap but differs in that it is much smaller (under 4 cm broad when fully expanded). It has a very delicate fruiting body that lasts only a few hours before dissolving into black ink. A number of other poisonous or inedible white mushrooms that have warty or scaly caps are superficially similar. They differ in that they do not turn inky/black when old, and/or do not have a blackish spore deposit.

Related: Edible Plants of PNW - Edible Berries of PNW - Edible Seashore of PNW
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