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Leucocoprinus birnbaumii
Fruit bodies of Leucocoprinus birnbaumii are agaricoid (mushroom-shaped) and occur singly or in small clumps. All parts are bright, pale sulphur-yellow, but fade with age. When young, the cap is usually taller than broad, later becoming convex and around 20–60 mm (1–2.5 in) across. The cap surface is smooth but dotted with fine, easily detached scales, and often develops shallow, radial grooves near the margin. The gills are free (not attached to the stem) and are covered by a partial veil when young, which ruptures to leave a fragile, evanescent ring on the stem.
Like all Leucocoprinus species, L. birnbaumii is a saprotroph, living on very decayed plant matter (humus or compost). The fungus is common throughout the tropics and subtropics, extending into warmer parts of the temperate zones
Fruit bodies of Leucocoprinus birnbaumii are poisonous if consumed, causing significant stomach problems.