Agrocybe putaminum, commonly known as the mulch fieldcap, is a species of agaric fungus in the family Strophariaceae in the Agrocybe sororia complex. It was described as new to science in 1913. The fruitbodies have a dull brownish-orange cap with a matte texture, a grooved stipe, and a bitter, mealy taste. They are inedible.

It grows in parks, gardens, and roadsides in woodchip mulch in Eurasia, Australia, and western North America.

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