Gem-studded Puffball
Lycoperdon perlatum
Type: puffball
Physical Characteristics
Globose to pear-shaped fruiting body covered in short, cone-shaped spines or warts that leave a net-like pattern when they fall off.
Habitat & Growing Conditions
Grows on the ground in a variety of habitats including forests, grassy clearings, and along roadsides; can grow in soil or among leaf litter.
Season & Fruiting Time
Summer to late autumn, often appearing after heavy rain.
Similar Looking Species
Lycoperdon pyriforme (grows on wood, not soil) and Calvatia species (larger, often lack the distinct 'pearl' spines).
Ecological Role
Saprophytic, breaking down organic matter in the soil and leaf litter.
Fruiting Body
The fruiting body is 2 to 6 cm wide and 3 to 10 cm tall, often with a distinct 'stem' or sterile base. The outer surface (exoperidium) is white to cream and covered in small spines. The interior (gleba) starts white and firm, turning into a powdery olive-brown mass of spores as it matures. An apical pore at the top releases spores.
Size
2-6 cm diameter at the top, 3-10 cm height.
Spore Print
Olive-brown
Distribution
Cosmopolitan distribution; found throughout North America, Europe, Asia, and other temperate regions.
Identification Tips
Look for the characteristic 'pearls' or spines on the surface. If you rub your thumb over the surface, the larger spines should fall off easily, leaving a characteristic reticulate pattern behind.
Interesting Facts
When mature, the fruiting body functions like an organic bellows; raindrops hitting the surface compression the internal air, forcing puffs of spores out through the central hole to be carried by the wind.
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: 4/18/2026
Mode: Standard