Mulch Fieldcap

How many fungi you're likely to see on your walk depends on how much rain we've been getting. Often found in clusters in wood chip or mulch piles, the Mulch fieldcap (Agrocybe putaminum) is a common mushroom here in Dimond Park. Mulch fieldcaps have dome-shaped caps that flatten out over time and range from 1-4 inches in diameter. These little fungi appear dark brown at first and fade to pale yellow or tan as they grow. They sport thin ridges on their stems, which are formed from their mycelial cords, or loosely bunched root forms that help the mushroom get nutrients. Mulch fieldcaps have been described as having a bitter taste, and are not good for consumption.