Orange Sponge Polypore
Pycnoporellus alboluteus · Family Pycnoporellaceae · Updated October 2026
254US records
16states
Junbusiest month
254 US records since 1888 (69 in the last 10 years)
Last seen Jul 28, 2026 (about 3 months ago) in Lassen Volcanic National Park, CA, photographed by an iNaturalist user, with the ID agreed on by other iNaturalist users (research grade). Most US records come from Colorado, California and Utah, and the busiest months are Jun, Jul and Aug. (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: Jun, Jul, Aug.
Where it's recorded
Top counties
- Siskiyou County, CA (26) · latest Jun 9, 2025
- Routt County, CO (15) · latest Jul 28, 1956
- Carbon County, WY (14) · latest Aug 9, 1950
- Flathead County, MT (10) · latest Jun 30, 1971
- Teton County, WY (10) · latest Jun 18, 2024
- Gilpin County, CO (10) · latest Jul 21, 1996
- Coconino County, AZ (10) · latest Jun 21, 2025
- Clallam County, WA (7) · latest Oct 16, 2025
- Duchesne County, UT (7) · latest Aug 7, 2022
- Cache County, UT (7) · latest Jun 27, 2019
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.