X🔥︎ DO NOT BURN 🔥︎XAvoid all contact with smoke.

  • If contact with smoke, seek ⚕ medical attention with all due speed.
X⛽︎✂ DO NOT USE HEDGECLIPPERS ✂⛽︎X.  Neither petrol/​gasoline nor electric:

  • I met a guy whose petrol/​gasoline hedgeclippers went through poison ivy before he noticed—plant fragments hit his lungs, the poison entered his bloodstream, hitting all body organs horribly, and putting him under ⚕ medical care for months.
  • Perhaps a 😷 P100 HEPA respirator/​filter mask would have helped, but I suggest ✂ hand tools, nice and slow!
X✋︎ ☠ DO NOT TOUCH ☠ ✋︎X. To avoid skin rash and irritation phototoxic phytophotodermatitis, leading to ¿permanent damage, disfigurement and blindness?, avoid contact with all parts of this plant with your ✋︎ skin, 👟︎ shoes, 👕︎ clothing and 🐕︎ pets:

  • If contact with anything, seek ⚕ professional medical advice with all due speed.  This author has heard of chemical causing permanent disfigurement of skin if the victim fails to stay out of the sun for 10 days (phototoxic and phytophotodermatitis).  If contact with the eyes, I read it can cause blindness.  Seek someone with more knowledge than me.  Now.

Also called giant cow parsnip, giant cow parsley, hogsbane, cartwheel-flower, wild parsnip (although do not confuse with wild parsnip  Pastinaca sativa ) and wild rhubarb.  Part of carrot/celery/parsley  family Apiaceae.

Native to central Asia. Invasive > learn+quiz Invasive > Global Invasive > in USA+Canada Invasive > report it! Invasive > in USA Invasive > in USFS (.pdf) Invasive > in Michigan prohibited in Michigan, incl. seeds, fragments and derivatives (.pdf)

Learn more about X✋︎ ☠ giant hogweed ☠ ✋︎X Heracleum mantegazzianum

Best Control Practices BCP (Ontario) (.pdf) and its Technical Bulletin (.pdf)

Discover Life Encyclopedia of Life Google Google images Michigan Flora Missouri Botanical Garden USDA PLANTS db USFS Wikipedia