CalPhotos    Photo Database

Heracleum mantegazzianum; Giant Hogweed   

Contributors      Log In  

click photo for larger file
Heracleum mantegazzianum
Heracleum mantegazzianum
Giant Hogweed
Photographer: Bill Moses

ID: 0000 0000 1208 3370 (2008-12-29)

Copyright © 2008 Bill Moses

  • date of photo  Jul 4, 2008
  • latitude 44.55520   longitude -80.93430     View on Google Maps.
  • location   Harrison Park, Owen Sound (Ontario, Canada)
  • family Apiaceae
  • notes   There is some confusion between H. mantegazzianum(an alien)and H. maximum (cow-parsnip - a native plant). Please have a look at for details. I collected seed later in the year (see separate photo) which in my view resolves the matter of what this plant actually is. Giant hogweed is quite poisonous, the sap causing blistering and scarring when in contact with the skin.
  • camera   Canon SD1000
  • photo category: Plant - annual/perennial

  • common names   Giant Hogweed (photographer)
  • View all photos in CalPhotos of Heracleum mantegazzianum
  • Check Google Images for Heracleum mantegazzianum

  • The photographer's identification Heracleum mantegazzianum has not been reviewed. Click here to review or comment on the identification.

    Using this photo   This photo is in the public domain and may be freely used for any purpose. Please credit the photographer Bill Moses. If you have questions, contact Bill Moses


    Copyright © 1995-2023 UC Regents. All rights reserved.

    CalPhotos is a project of BNHM     University of California, Berkeley