Cap: Campanulate to convex with an incurved margin in the young, expanding to broadly convex with age, sometimes conical and usually zonate (bands or zones of reddish-brown colors or zones frunning from the outer edges of the cap towards the center of the cap). Smokey brown to dull chestnut brown. Hygrophanous and cap skin craking in age or in drying.

Gills:Adnate and soon seceding, close and moderately broad, dark brown and slightly mottled from the uneven ripening of spores.

Stem:40 to 80 mm long by 2-3.5 mm thick. Equal, brittle, pruinose and slightly striate and twisted towards the apex. Pallid to whitish and darkening from the base upwards with age. Veil obscure or absent.

Spores:12-17 x 7-9 microns. roughened.

Sporeprint:Dark brown, not black in deposit.

Habitat: Lawns and grassy areas

Distribution: Cosmopolitan appearing scattered to gregarious in lawns and grassy areas around the world, but not in dung.

Season: Fruiting abundantly in the early spring to summer and again in the fall months

Dosage: This species is not psychoactive and never has been. Some analyses have claimed this species as psilocybian but this was because of mixed collections placed together on herbarium sheets (see Allen and Merlin's article:
Observations Regarding the Suspected Psychoactive Properties of Panaeolina foenisecii Maire.

Comment: This species is very close macroscopically to Panaeolus subbalteatus except it is smaller and does not have verticle grooves runing up and down the stem and it does not stain blue. Also, Panaeolina foenisecii's cap never becomes flat and upturned as does Panaeolus subbalteatus. This species is common in lawns and is known throughout the globe as the "Hay Mower's" Mushroom.