Western Jack O' Lantern
Omphalotus olivascens
WARNING: Toxic Species - Western Jack O' Lantern
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Key Features
- Deeply decurrent yellowish gills
- Olive-orange to bronze-orange cap
- Dense clusters on hardwood stumps
- Blade-like true gills
- Yellow-orange internal flesh
Color:
Olive-orange cap, yellow-orange gills
Smell:
No distinctive smell
Growth Pattern:
Clustered
Environment:
wood
Habitat & Distribution
Habitat:
Hardwood stumps, especially eucalyptus and oak
Distribution:
California and Western United States
Seasonality:
Fall to Winter
Economic Value
Market Demand:
None - toxic
Price Range:
N/A
Commercial Use:
None
Toxicity Information
Symptoms:
- Severe vomiting
- Abdominal cramps
- Diarrhea
- Headache
Onset Time:
30 minutes to 3 hours
First Aid:
- Seek emergency medical care immediately
- Do not induce vomiting unless directed by a professional
- Retain a sample for identification
Emergency Contacts:
- 911
- Poison Help (US): 1-800-222-1222
Similar Species
California Chanterelle
Cantharellus californicus
Key Differences:
- Grows from soil, not wood
- Blunt ridges instead of sharp gills
- Does not grow in tight clusters
Big Laughing Gym
Gymnopilus junonius
Key Differences:
- Possesses a ring on the stem
- Rusty-orange gills and spore print
- Gills are not deeply decurrent
Recommended Action
Do not consume. Seek medical attention if ingested.