Puffball Mushroom Identification: Earthballs in the Lawn

Round, tan, potato-like growths embedded in soil with dark interiors are likely puffballs (earthballs), probably Scleroderma polyrhiza. These fungi appear in late summer to fall, often near trees or in lawns.

Key Characteristics

• Round to irregular shape, light tan exterior
• Dark purple-black spore mass inside when mature
• No stem or gills—spores released through surface rupture
• Eventually dry to brown spore powder dispersed by wind or disturbance

Edibility and Safety

While some puffball species are edible when young and pure white inside, Scleroderma species are generally considered inedible or potentially toxic. Never consume wild mushrooms without expert identification. These fungi are harmless to lawns and can be left to complete their lifecycle or removed if desired.