Province of Ontario Poison Ivy Province of Ontario TIL poison ivy's skin irritation only occurs in humans. http://www.omafra.gov.on.ca/english/crops/facts/99-015.htm Province of Ontario Poison Ivy ವಿಷಯುಕ್ತ ಹಸಿರು ಸಸ್ಯ நஞ்சுப் படர்க்கொடி Ontario Ministry of Agriculture and Food పాయిజన్ ఐవీ Poison Ivy Poison Ivy पॉइज़न आइवी