[1] It has been classified in the section Sicci of the genus Marasmius, along with species like M. delectans, M. megistus, M. anomalus, and M. haematocephalus.

However, molecular analysis has not provided evidence that these species form a distinct phylogenetically related group.

The stipe measures 5.4–8 cm (2.1–3.1 in) long by 1–1.25 mm thick, and is straight or curved, shiny, and hollow.

The spores are shaped like lances (oblanceolate) or curved clubs, and are smooth, hyaline (translucent), and have dimensions of 15.2–18 by 3–4.5 μm.

[4] A saprobic fungus, Marasmius fulvoferrugineus fruits in groups or clusters on decaying leaves and humus in mixed woods.