Sub-category: Leucocoprinus genus
Syn. Leucocoprinus cepistipes. This little lepiota can be recognized by its powdery white cap, its lined margin, and its habitat in cultivated areas, especially on wood chips. Cap is 2 to 8 cm, oval when young, becoming broadly conical or bell-shaped or nearly flat; dry; powdery with soft, white granules; sometimes becoming scaly in age; white to pale pink, often with a darker, yellowish or brownish center; the margin distinctly lined. Gills are free from the stem; white; crowded. Stem is 4 to 14 cm long; 3 to 6 mm thick; more or less equal, but frequently swollen in places (reminiscent of scallions; the Latin name means 'onion-stalked' and refers to the shape rather than the texture or color); with a swollen base; smooth or with white powder; often discoloring yellowish to brownish and/or bruising these shades; with a white ring on the upper stem that is fairly persistent but easily removed. Flesh is white; very thin; sometimes bruising or discoloring yellowish to brownish.
Can be found growing in groups or clusters in wood chips, cultivated soil, and gardens. Rarely found in woods.