Plant Profile: Scleroderma geaster

The dimensions, density, and robustness of this fungus's fruiting body make it easily recognizable. Its thick rind, which encases the spore mass, often remains intact for months after the spores have dispersed. Notably, this fungus can even damage asphalt surfaces on driveways and tennis courts as the fruiting bodies mature.

These fruiting bodies are substantial and somewhat rounded, measuring between 5 to 6 inches in diameter. They exhibit a tan to light brown coloration and tend to break apart into large, scale-like patches as they expand. As they grow, they can develop irregular, star-like lobes or rays, typically featuring four to six of these projections. The peridium, or outer layer, is notably thick and tan, while the gleba, or inner spore mass, displays a marbled purple-brown hue even in its early stages, transitioning to a blackish-brown and dusty appearance as the spores reach maturity.

This species is prevalent across North Carolina, particularly in the Piedmont region, where it thrives in exposed clay soils, especially along road banks. It can be found in forested areas or natural landscapes, often appearing alone or in clusters of three to four fruiting bodies, with some occasionally fused together on exposed clay or sandy ground, and sometimes even in lawns.

It is important to note that this fungus is highly toxic and can be lethal if ingested. Its distinctive size, thickness, and firmness further contribute to its easy identification.