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How to Identify Common Earthball, Yellow Earthball

Scleroderma citrinum
POISONOUS — DO NOT CONSUME Season // Aug-Oct Family // Sclerodermataceae

Description

Scleroderma citrinum is a globular, spore-producing fungus that resembles a small, yellowish to brownish ball. The outer surface is smooth and can be somewhat leathery, while the interior contains a dark, powdery spore mass.

Key Identification Features

Field marks recorded for this species. Work through all of them, not just one:

  • Globular shape
  • Yellow to brown color
  • Smooth, leathery exterior
  • Dark spore mass inside
  • No distinct gills or stem

Specimen Profile

FamilySclerodermataceae
GenusScleroderma
EdibilityPoisonous — do not consume
Toxicityhigh
SeasonAug-Oct
HabitatTypically found in sandy or acidic soils, often in forests or grasslands.
RegionWidely distributed across Europe, North America, and parts of Asia.

Habitat & Distribution

Habitat: Typically found in sandy or acidic soils, often in forests or grasslands.

Region: Widely distributed across Europe, North America, and parts of Asia.

Seasonality

Fruits from late summer to early autumn.

Typical months: Aug-Oct

Common Lookalikes

Always verify identification to avoid these similar species. The differentiator is the point — learn the one or two tells that separate them:

Scleroderma areolatum (poisonous)

HOW TO TELL APART

Distinguished by its more irregular surface and often larger size.

Lycoperdon perlatum (edible)

HOW TO TELL APART

Recognizable by its spiny surface and pear-shaped body.

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Disclaimer: This guide is for educational purposes only. Never consume a wild mushroom unless you are 100% certain of its identification.