⚠ If you suspect ingestion of this species, call Poison Control immediately:
1-800-222-1222 (US) · poison.org

Barometer Earthstar

Astraeus hygrometricus

— Non-Edible

Do not eat — not considered edible; may be used medicinally or for study only

Cap color: Brown to gray
Cap size: Medium (3-8 cm when open)
Gill color: N/A (puffball-type, no gills)
Gill attachment: N/A
Stem: N/A (sessile, no stem)
Texture: Leathery to tough
Habitat: Sandy or gravelly soils in open woodlands and scrub
Fruiting season: September–February
Peak season: Fall-Winter

Key Identification Features

Star-shaped with 6-15 rays that open in humid conditions and close when dry
inner sac brown to gray releasing powdery spores
no gills
hygroscopic rays

Symptoms & Toxicity

Inedible; too tough; not known to cause poisoning but not consumed

Regions Found

Region data not available

Look-Alikes

No documented look-alikes on record.

Safety disclaimer: This page is for educational purposes only. Never eat a wild mushroom based solely on online information. Always verify identification using multiple reliable field guides and, when possible, consult an experienced forager or mycologist. When in doubt, don't eat it. Spore & Scout accepts no responsibility for identification errors or adverse reactions. If you believe someone has ingested a toxic mushroom, call Poison Control (1-800-222-1222) immediately.