Agaricus hahashimensis
Described by Ito and Imai in 1940 from Hahajima in Japan's Ogasawara (Bonin) Islands. It has no usable GBIF records, so conditions are inferred from the island's subtropical oceanic climate.
At home, aim for
Day
Warm-growingTargets in Plantistry
Night
Close to the dayTargets in Plantistry
Humidity
Very humid airBand in Plantistry
Light
Dappled lightDLI and PPFD in Plantistry
No rest period
Where it grows wild
Probably a soil or litter saprotroph in island subtropical forest; not verified.
Hahajima rises to about 460 m.
Ogasawara Islands
🔒 Growing it like that
The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:
✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild
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More Agaricus
Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.