View mode

US Wild Mushroom Finder

When and where a dozen sought-after wild mushrooms fruit across the United States, built from 280,000+ open iNaturalist observations. Pick a mushroom to see its season and which states it shows up in.

This is observation data, not a foraging guide. Never eat or ingest a wild mushroom based on an identification from this page. Several have toxic lookalikes that can kill, and some are controlled substances. This only shows where species have been recorded. Forage only with an expert and a field guide.

Pick a mushroom

Choose one to see the best time of year and the states where it fruits.

Mushroom

State

Month

When to look

Color shows each month's share of that mushroom's yearly sightings, so the fruiting window stands out regardless of volume. Bars across the top and right show monthly and per-mushroom totals. Hover for detail, click any cell to focus.

View SQL

Seasonal pattern

Each month as a share of the mushroom's yearly sightings. The peak month, the best time to find it, is highlighted.

View SQL

Where it shows up

Top states by observation count (the rest are grouped). Click a state to filter every chart. Counts track where people look as well as where mushrooms fruit, so populous, mycology-active states lead.

View SQL

Hotspots

hover a dot for detail 0 points shown

View SQL

Seasonality by mushroom

Each line is one mushroom's monthly share of its own yearly sightings. The selected mushroom is highlighted; hover or click a line to focus it. Note the spring morel peak against the fall flush of everything else.

View SQL

Data: open observations from iNaturalist and its contributors (CC-licensed), United States, 2010 to present. A mushroom is only visible when it fruits, so observation timing reflects the fruiting season directly. Each observation is placed in a state from its iNaturalist location. Morels, oysters, chicken of the woods, and lion's mane are rolled up at the genus level; locations of sensitive species are coarsened by iNaturalist. Counts reflect where people look as well as where mushrooms grow. The map draws up to 20,000 points per mushroom for speed; every observation is used in the charts.

What this means for your business

Same build, your data

Swap mushrooms for product lines and states for regions and this is a seasonality and market dashboard on 280,000 records: cross-filtered views, a hotspot map, and the SQL visible under every chart. We ship the same thing on your warehouse.

Book an intro call See services