Mower's Mushroom (Haymaker)

Panaeolus foenisecii

Type: gilled mushroom

Mower's Mushroom (Haymaker)

Physical Characteristics

Small, conical to convex cap that is hygrophanous (changes color as it dries), usually dark brown to tan. The gills are mottled dark brown to black. The stem is thin, fibrous, and lacks a ring. Spore print is dark brown.

Habitat & Growing Conditions

Grows in grassy areas such as lawns, parks, and pastures. It is often found in nutrient-rich soils after rain.

Season & Fruiting Time

Late spring through autumn, appearing most frequently during warm, wet periods.

Similar Looking Species

Panaeolus cinctulus (which has a jet-black spore print) and various species of Panaeina or Mycena.

Ecological Role

Saprophytic, breaking down organic matter in grass and soil to return nutrients to the ecosystem.

Safety reminder

AI mushroom identification is a best-effort estimate and can be wrong. Never use it to decide whether a mushroom is safe to handle or eat — always confirm with a qualified mycologist before any consumption.

Identified on: 1/21/2026

Mode: Standard