Conocybe rugosa
species of fungus
Conocybe rugosa is a common and highly toxic species of mushroom that is widely distributed in Eurasia and North America.
Taxonomy
The species was originally described in the genus Pholiotina, and its morphology and a study conducted in 2013 about molecular phylogenetics supported its continued classification there.
Description
Conocybe rugosa has a conical cap that expands to flat, usually with an umbo. It is less than 3cm across, has a smooth brown top, and the margin is often striate. The gills are rusty brown, close, and adnexed. The stalk is 2mm thick and 1 to 6cm long, smooth, and brown, with a prominent and movable ring. The spores are rusty brown, and it may be difficult to identify the species without a microscope.
Habitat and distribution
The species grows in woodchips, flowerbeds and compost piles. It has been found in Europe, Asia and North America. It is especially common in the Pacific Northwest.
The public source identifies “Conocybe rugosa” as species of fungus. This brief keeps that definition visible, then builds a research path around Conocybe, rugosa and species.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Jul 16, 2026. The linked authority identifier is Q10458525. The first chronological checks are 2013.
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This entry incorporates text from “Conocybe rugosa” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.