Spreading the Word Typical Appearances Briefing Prevention First Aid Medical Care Identification About the Author
Stems
Reproduction
Foliage
Risk Management
Biochemistry
Anecdotes
Bibliography
Appendices
Dermatology Anacardiaceae
Photo by Joyce Cory
Spreading The Word
Poison-oak is the most common brush plant in California.
The plant oozes sap that turns black when air hits it.
People get a rash when that sap gets on their skin.
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