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Giant Hogweed

Heracleum mantegazzianum

Description:

Green stalks with slight pink at joints. White flower cluster at top. Up to 7 ft tall

Habitat:

Woods in nature preserve. Shade only, no specimens growing in open prairie area nearby (though some were under a lone tree)

Notes:

Very much resembled Queen Annes lace but I've never seen a specimen this tall. The pic with me it was taken with my phone extended above the plant above me, and I'm 6' 3"

1 Species ID Suggestions

LarsKorb
LarsKorb 11 years ago
Giant Hogweed
Heracleum mantegazzianum


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7 Comments

LarsKorb
LarsKorb 11 years ago

Giant hogweed doesn't necessarily grow in clusters. Here in my region it grows exactly the way it is shown on your pics. Plus, there is no other hogweed that grows that tall (up to 2+ metres). The ID is pretty certain.

Asrugan
Asrugan 11 years ago

I'm just wondering if it's not a different sp, as these all grew separately, and giant hogweed seems to grow in clusters. I would also think the preserve might take more of an issue if these were.

Asrugan
Asrugan 11 years ago

That makes this more troubling, as it was taken right along a major walking path in a nature preserve.

LarsKorb
LarsKorb 11 years ago

Brandon is right - be careful with it. It's phototoxic and causes very heavy, in many cases irreperable damage of the skin.

Asrugan
Asrugan 11 years ago

Close up of leaves added

BrandonBlount
BrandonBlount 11 years ago

http://en.wikipedia.org/wiki/Heracleum_(...) be very careful around this plant, if it's the Giant Hogweed species, it can cause a very very very serious skin reaction if you get the sap on bare skin.

BrandonBlount
BrandonBlount 11 years ago

without seeing an individual leaf, i can't narrow it down to the sp, but I can tell you that it's hogweed.

Asrugan
Spotted by
Asrugan

Dubuque, Iowa, USA

Spotted on May 12, 2012
Submitted on May 21, 2012

Spotted for Mission

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Reference

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