What is this plant? - Knowledgebase Question

Hamilton, Ontario Canada
Question by JohnStonecreek
September 10, 2017
I have 5 of these plants in my yard near my pond.
They are around 5 feet tall with reddish stems and long jagged leaves.
They look a lot like water hemlock but the flower is a tiny orange flower.
I'd like to know what it is and if i should pull them out or even if they are harmful

Thumb of 2017-09-10/visitor/6eb8bb

Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Image
Answer from KentPfeiffer
September 10, 2017

3

Purplestem beggarticks (Bidens connata) or a similar species of Bidens.

Hamilton, Ontario Canada
A comment from JohnStonecreek
September 10, 2017
That's it!!!
Thank you so much to KentPfeiffer and the National Gardening Association website for putting my mind at ease. This is a great web site.
Thank you again.

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