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Help with shrubbery ID [solved: Giant Ragweed, ambrosia trifida]

 
gardener
Posts: 2781
Location: Central Oklahoma (zone 7a)
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So, in my yard there is a mass of shrubbery (picture one). It has a very distinctive three-lobed leaf shape (picture two). There is no extra charge for the abandoned insect carapace (picture three).

The leaves look a bit like some sassafras leaf pictures I've seen, but the plant type seems wrong for what little I know of sassafras. Plus, it seems to grow as an annual weed, whereas I thought sassafras was supposed to be a tree.

Anybody got a notion?

mystery-shrubbery-01.jpg
[Thumbnail for mystery-shrubbery-01.jpg]
lots of mystery shrubbery
mystery-shrubbery-02.jpg
[Thumbnail for mystery-shrubbery-02.jpg]
closeup of leaves (with carapace)
mystery-shrubbery-03.jpg
[Thumbnail for mystery-shrubbery-03.jpg]
better view of carapace, just for fun
 
gardener
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Location: Cincinnati, Ohio,Price Hill 45205
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The shed skin looks like cicada sort of.
Mulberries share the "mitten"shape off their leaves with those of the sassafrass, but each have "right handed" and "left handed" leaves that this plant seems to lack. ..
 
steward
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Location: Western Kentucky-Climate Unpredictable Zone 6b
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The plant is a Giant Ragweed . Ambrosia trifida . The carapace is from a cicada I believe .
 
Dan Boone
gardener
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That's it for sure -- ambrosia trifida. Thanks, all. Gentlemen, start your engines and sharpen your mulching knives...

http://en.m.wikipedia.org/wiki/Ambrosia_trifida
 
gardener
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Location: NE Oklahoma zone 7a
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I have a bunch of these giant ragweeds as well. I am growing them out to seed so I can feed them to the chickens.

There is a link here that shows a ragweed pasture made for chickens. I am doing a similar setup with lambs quarters as my main plant.

 
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