I'm still trying to identify a large plant spotted in a swampy area. Check out the picture link below.?

Question

http://i324.photobucket.com/albums/k323/denkpublic/IMG_0004.jpg

Answer 1

That looks pretty much Class A noxious weed, Giant Hogweed to me.  Never, never touch this plants!  I have a guide book of noxious weed from the county, and it said, "CAUTION: Skin contact followed by exposure to sunlight produces painful, watery blisters and scars."  So, do not touch it!

Answer 2

I agree that this is giant hogweed.

DO NOT touch it.  The plant is highly toxic and contact with your eyes can cause blindness, and skin contact will cause a horrible rash that is difficult to treat.

Contact the local authorities immediately so they can eradicate this plant before it goes to seed.  This plant is a very serious problem.

Answer 3

I would guess it is a Marsh Mallow (no - that is its actual name).  This looks like an early spring shot though, there should be more leaves on the stems unless something like Japanese Beetles have eaten them.  If that is not what they are (all the ones in our wetlands are Marsh Mallows and other wild hibiscus forms) then them might be a parasitic plant like mistletoe growing on some young, faltering trees.

Oh - if you are out west, it might be Dodder (see the bottom of the second link) which is a leafless white-blooming parasitic plant that grows in marshes! That looks like it, doesn't it?  Yeah, I would vote for Dodder.

Answer 4

By general appearance it appears to be a member of the parsley/celery family.  By its size it COULD be "giant hog weed", an introduced alien weed.  I don't know its distribution, but the link below gives some pictures with which you may compare.