Land Plants - invasive

Giant Hogweed (Heracleum mantegazzianum) on Apr 26, 2008

Submitter does not have a specimen

Description of specimen

heracleum mantegazzianum, giant hogweed, not as tall as in the photo online but the leaves were the same.

Commentary

no pictures I notice it after I went to your web page

Reporter
April 26, 2008, 4:30 p.m.

Thank you for your submission: Giant hogweed is a state designated "A" noxious weed in Oregon and is a high priority for control.

I suggest that you contact Phil Burgess, the Clark County WA, Weed Dept. Director for confirmation on your site. His phone number is: 360 397-6140.

Tim Butler, ODA Noxious Weed Control Program

Tim Butler
April 30, 2008, 4:46 a.m.

Resources

There are many plants that look similar to giant hogweed, including our native cow parsnip. Giant hogweed is truly giant, often 7' to 14' tall, with leaves that can be up to 5' wide. There are some great photos comparing giant hogweed to similar species on the New York Dept of Environmental Conservation website.

Location


I am a Washington state resident and I pulled about 6 of this plant out of my garden today. They were different then any weeds I have pulled before. The hogweed was hard to remove they were well established in my Crocosmia Bulbs. I have not been in the garden this year as usual, (I am a full time student and just do not have time) but what struck me was how hard they were to pull out they just broke off. I am in Vancouver Washington but your web page does not list it so I put the nearest county

Expert Reviewer

Mr. Tim Butler

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