Plant ID forum: Western ragweed (Ambrosia psilostachya); Northern Arizona, Reservation

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goldbellie
Aug 10, 2015 5:04 PM CST
These were growing in a cluster behind a building. They all had individual roots and there were many of them. They look a lot like arugula. They also smell very pungent and sweet maybe slightly spicy. They are pinnate lobed and elliptic I think. I have searched through all my plant books and the internet for hours and have found nothing but arugula. I think they are very young and might eventually develop hairs. Maybe they will look very different someday.

Help! It's driving me crazy! Can I eat them?
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Name: josephine
Arlington, Texas (Zone 8a)
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frostweed
Aug 10, 2015 5:49 PM CST
I think it is Western Ragweed, http://www.wildflower.org/gallery/result.php?id_image=36144
Even though it is called ambrosia I don't think it is edible. Smiling
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Name: Jay
Nederland, Texas (Zone 9a)
Region: Texas Region: Gulf Coast Charter ATP Member I helped beta test the first seed swap I helped plan and beta test the plant database. I was one of the first 300 contributors to the plant database!
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Horntoad
Aug 10, 2015 7:53 PM CST
I agree, it looks like ragweed. Most likely Ambrosia psilostachya as Josephine suggested.
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Name: Lin
Florida (Zone 9b)
Region: United States of America Morning Glories Region: Florida Houseplants Charter ATP Member I was one of the first 300 contributors to the plant database!
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plantladylin
Aug 11, 2015 3:09 AM CST
More photos of Western ragweed (Ambrosia psilostachya) in or database for comparison.
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Name: stone
near Macon Georgia (USA) (Zone 8a)
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stone
Aug 13, 2015 7:09 AM CST
Any chance this might be eupatorium greggii (conoclinium dissectum)?
[Last edited by stone - Aug 13, 2015 7:12 AM (+)]
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Name: Jay
Nederland, Texas (Zone 9a)
Region: Texas Region: Gulf Coast Charter ATP Member I helped beta test the first seed swap I helped plan and beta test the plant database. I was one of the first 300 contributors to the plant database!
Celebrating Gardening: 2015 Plant Identifier Tip Photographer Garden Sages Garden Ideas: Master Level Hibiscus
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Horntoad
Aug 13, 2015 10:56 AM CST
It's similar, but I don't think that is it.
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