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Heracleum mantegazzianum
giant hogweed Carrot Family
Heracleum mantegazzianum Apiaceae
common names
  giant hogweed
  giant cow parsnip
accepted scientific name
  Heracleum mantegazzianum Sommier & Levier
rules for finding collection records
  Heracleum mantegazzianum (126)
family name
Image Author: ©2012 Huhu Uet
Image License: CC BY
Image Source
Category: Wildflowers
Flowers: Five petals
Petal colors: color
Leaf: Alternate
Plant Observed 3rd week of May thru end of October
Invasive in AL, CA, CT, FL, MA, MN, NH, NC, OR, PA, SC, VT, WA, US. Noxious weed in OR.

How Likely at this Location (13%)
Name Match (100%)
Plant Showiness (54%)
base map where plant found
mag select

grid lines base