Rhizomarasmius pyrrhocephalus is a taxon of fungus. It serves as the type species of its genus.
Taxonomy The genus Rhizomarasmius was split from Marasmius due to morphological differences such as the cystidia and the rooting stipe (hence the prefix rhizo). Rhizomarasmius pyrrhocephalus is the type species.
Description The orange-colored cap is wide. Its rooted black stipe has velvety hairs and is up to long. It has adnate gills and a white spore print, not unlike Marasmius species.
Similar species It can resemble Marasmius sullivantii, Marasmiellus biformis and M. subnudus.
Distribution and habitat This mushroom is known mainly from eastern North America, and grows from May to October on leaf litter and wood.
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