Blue Lactarius
Lactarius indigo · Family Russulaceae · Updated October 2026
1,354US records
34states
Augbusiest month
1,354 US records since 1887 (777 in the last 10 years)
Last seen Oct 2, 2026 (about 3 weeks ago) in Smith Lake, IA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from New Jersey, North Carolina and Tennessee, and the busiest months are Aug, Jul and Sep. (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: Aug, Jul, Sep.
Where it's recorded
Top counties
- Sussex County, NJ (73) · latest Aug 22, 2020
- Ocean County, NJ (58) · latest Oct 26, 2019
- Morris County, NJ (46) · latest Aug 11, 2026
- Mercer County, NJ (46) · latest May 4, 2019
- Burlington County, NJ (39) · latest Oct 6, 2018
- Orange County, NC (39) · latest Aug 23, 2026
- Hunterdon County, NJ (31) · latest Aug 25, 2019
- Alachua County, FL (30) · latest Sep 22, 2024
- Monmouth County, NJ (26) · latest Aug 22, 2015
- Brown County, IN (25) · latest Aug 23, 2026
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.