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How to Identify Striate Earthstar

Cyathus striatus
INEDIBLE Season // May-Oct Family // Agaricaceae

Description

Cyathus striatus is a small, cup-shaped fungus that resembles an earthstar. It features a striated outer layer that splits open to reveal a spore sac, which is typically white or cream-colored.

Key Identification Features

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

  • Cup-shaped fruiting body
  • Striated outer layer
  • White to cream-colored spore sac
  • Typically small, about 2-5 cm in diameter
  • Grows in clusters

Specimen Profile

FamilyAgaricaceae
GenusCyathus
EdibilityInedible
Toxicitynone
SeasonMay-Oct
HabitatGrows on decaying wood or leaf litter in damp, shaded areas.
RegionFound in temperate regions worldwide, including North America, Europe, and parts of Asia.

Habitat & Distribution

Habitat: Grows on decaying wood or leaf litter in damp, shaded areas.

Region: Found in temperate regions worldwide, including North America, Europe, and parts of Asia.

Seasonality

Fruits from late spring to early autumn.

Typical months: May-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:

Geastrum triplex (inedible)

HOW TO TELL APART

Larger and has a more pronounced star shape.

Geastrum saccatum (inedible)

HOW TO TELL APART

More bulbous and lacks the striations.

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Track your Striate Earthstar finds

Pin the patch before you leave it. Coordinates, photos, and field notes stay on your device — and the offline lookalike guide travels with you into the deep woods.

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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.