Tiny Earthstar
Geastrum minimum · Family Geastraceae · Updated October 2026
207US records
35states
Sepbusiest month
207 US records since 1861 (6 in the last 10 years)
Last seen Mar 15, 2025 (about 19 months ago) near Circle D-KC Estates, Bastrop County, TX, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from New Mexico, New Jersey and New York, and the busiest months are Sep, Oct and Apr. (Data as of October 26, 2026; records can lag by weeks.)
⚠ Never eat a wild mushroom based on this site. We show where fungi have been recorded, nothing more. We never say any mushroom is edible or safe, and you shouldn't decide that from any website, app or photo. Many deadly mushrooms look like harmless ones. If someone may have eaten a wild mushroom, call Poison Control at 1-800-222-1222 right away.
Lookalike warning. Many mushrooms, including deadly ones, closely resemble each other, and the only reliable identification comes from an expert looking at the actual specimen (often with spore prints or microscopy). Never use a name, photo or record count on this page to decide what something is.
When it's recorded
Records by month, all years. Busiest: Sep, Oct, Apr.
Where it's recorded
Top counties
- Gloucester County, NJ (12) · latest 1887-02
- Lincoln County, NM (12) · latest Sep 17, 1941
- Park County, CO (9) · latest Aug 22, 1971
- Onondaga County, NY (7) · latest Jul 1, 1890
- Mercer County, NJ (7)
- Los Angeles County, CA (6) · latest Oct 29, 1916
- San Miguel County, NM (5) · latest 1916
- Sauk County, WI (5) · latest Sep 18, 1998
- Chester County, PA (5)
- Santa Clara County, CA (4) · latest 1939-01
More on this species from GBIF.
Bring along
🍄
Regional mushroom field guideSee on Amazon🍄
Folding mushroom knife with brushSee on Amazon🍄
Wicker foraging basketSee on Amazon🍄
10x hand lens / loupeSee on Amazon🍄
Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.