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May 30, 2017 12:09 PM CST
Thread OP
Eastern Massachusetts (Zone 5b)
I have poor eyesight combined with no visual memory, and the appearance of poison ivy varies pretty widely. So a few times (including two years ago) I sprayed weed killer on anything that looks even a little like poison ivy. A year ago I found nothing that looks like it. But poison ivy and its look alikes are common in the neighborhood, so now the boundary between my property and the next lot over is thick with various plants within the general range of poison ivy appearance. I did a first round of indiscriminate spraying anyway (if I wasn't sure it wasn't poison ivy, I sprayed weed killer). But I'd like some better hints of what to look for when I review results:

In this one, I think the plant with the sets of 3 large green notched leaves is the same plant as the one with sets of 3 smaller reddish non-notched leaves and the combination is especially indicative of poison ivy. But I didn't push any of it around to even see for sure whether it is the same plant.
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This one has a very different (to me at least) combination of 3 leaves and reddish:

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This next one has a lot in common with the one above. I think it must be the same kind of plant even though to be the leaf shape looks different:


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Next: groups of 3 leaves, but I'm pretty sure not poison ivy. Two different plants common here look to me exactly like this. One grows into a giant shrub with sharp thorns. The other spreads staying low with tiny thorns. Please confirm it isn't poison ivy. But also what is it?


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Next: The leaf shape on these two is so different from each other, it is hard to imagine they are the same kind of plant. But I suspect they are both poison ivy.

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Last edited by jsf67 May 30, 2017 12:10 PM Icon for preview
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May 30, 2017 12:17 PM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: Ukraine Region: United States of America Bird Bath, Fountain and Waterfall Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database!
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It sure looks like it could be Poison Ivy (Toxicodendron radicans) to me. Hopefully others will be along with suggestions soon. For comparison, two photos from our database:

~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


Avatar for jsf67
May 30, 2017 12:29 PM CST
Thread OP
Eastern Massachusetts (Zone 5b)
Thanks. You selected (I assume intentionally) two photos that are a remarkably good match for the asymmetrically notched large green leaves in my first photo. I hadn't been that skilled at looking at online collections of the various appearances of poison ivy to find the ones that convincingly match. But I can see it once you did. So that one of the images I posted, I will conclude is poison ivy. What about the others?

I would like to know how many of the several different looking things with apparent groups of 3 leaves are poison ivy. Is it all but the one that looks like it is starting to develop thorns? Or are there more plant types shown?

Assuming that other one is a plant that develops thorns, I was hoping for that ID as well. I'll start another thread is necessary and if I'm sure it isn't poison ivy.
Last edited by jsf67 May 30, 2017 12:31 PM Icon for preview
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May 30, 2017 1:14 PM CST
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
The fourth photo is a berry.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

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May 30, 2017 5:32 PM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: Ukraine Region: United States of America Bird Bath, Fountain and Waterfall Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database!
Million Pollinator Garden Challenge Birds Butterflies Bee Lover Hummingbirder Container Gardener
# 1 through 3 look like Poison Ivy to me; leaves can be variable.

#4 and #5 remind me also of berry; possibly Blackberry or Dewberry (Rubus sp.): I found this page of Eastern Mas vascular plants with images for comparison: http://www.salicicola.com/phot...
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


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May 30, 2017 7:06 PM CST
Name: Sue
Ontario, Canada (Zone 4b)
Annuals Native Plants and Wildflowers Keeps Horses Dog Lover Daylilies Region: Canadian
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I think they're all poison ivy except probably the fourth one although apparently rarely poison ivy can also have more or less toothed leaves. The mis-shapen leaflets in the one leaf of picture five can happen with poison ivy, the other leaf does look like poison ivy.
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May 30, 2017 8:07 PM CST
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
I said the fourth is a berry as I can see what appears to be thorns on the stems.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Webmaster: osnnv.org
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May 31, 2017 4:23 AM CST
Name: Sue
Ontario, Canada (Zone 4b)
Annuals Native Plants and Wildflowers Keeps Horses Dog Lover Daylilies Region: Canadian
Butterflies Birds Enjoys or suffers cold winters Garden Sages Plant Identifier
DaisyI said:I said the fourth is a berry as I can see what appears to be thorns on the stems.


Good point, Daisy, I couldn't see those on my screen so I focused on the teeth. I remembered from the poison ivy website that very rarely poison ivy can have teeth so didn't want to rule it out on that basis even though it doesn't look like poison ivy. This is the page that shows the variations it can have:

http://www.poison-ivy.org/unus...
Avatar for jsf67
May 31, 2017 4:53 AM CST
Thread OP
Eastern Massachusetts (Zone 5b)
sooby said:The mis-shapen leaflets in the one leaf of picture five can happen with poison ivy, the other leaf does look like poison ivy.


The round leaves "with a dent where the point would normally go" are a good match to the 2'nd photo in the link you gave:

So I see consensus here that my 4'th photo is a berry and everything in the other 4 photos that has sets of 3 leaflets is poison ivy.

I guess I need to check again in a week and see what I missed with the weed killer. I probably also need to use gloves and care to rip out a large amount of virginia creeper from the same area. In past years, the vines growing up every tree in that area were poison ivy. This year those are all virginia creeper, but I still don't want them. The two are so intermixed than any virginia creeper I pull will brush against poison ivy as it comes out and any I don't pull is likely hiding smaller poison ivy plants under it.
Avatar for Texasviking
Jun 6, 2018 11:39 AM CST

We have been told that this is poison ivy, but the more I check the more uncertain I get. I used to live in Norway where poison ivy does not grow, so this is not familiar territory to me. Can anyone tell me what this is?
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Jun 6, 2018 12:37 PM CST
Name: Leslieray Hurlburt
Sacramento California (Zone 9b)
The WITWIT Badge Region: California Plant Lover: Loves 'em all! Xeriscape Native Plants and Wildflowers Salvias
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Poison Ivy has a milky sap that can help in identification when in doubt but I agree that all but one of your photos is Poison Ivy. I agree number four is a berry.
Hamilton Square Garden, Historic City Cemetery, Sacramento California.
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Jun 6, 2018 1:52 PM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: Ukraine Region: United States of America Bird Bath, Fountain and Waterfall Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database!
Million Pollinator Garden Challenge Birds Butterflies Bee Lover Hummingbirder Container Gardener
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


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Jun 6, 2018 2:28 PM CST
Name: Sue
Ontario, Canada (Zone 4b)
Annuals Native Plants and Wildflowers Keeps Horses Dog Lover Daylilies Region: Canadian
Butterflies Birds Enjoys or suffers cold winters Garden Sages Plant Identifier
I don't think Texasviking's plant is poison ivy or poison oak because it doesn't have long petioles on the terminal leaflet. It reminds me of something else but I'm not sure what yet. Safest to assume it's something to avoid until proven otherwise though.
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Jun 6, 2018 2:48 PM CST
Name: Sue
Ontario, Canada (Zone 4b)
Annuals Native Plants and Wildflowers Keeps Horses Dog Lover Daylilies Region: Canadian
Butterflies Birds Enjoys or suffers cold winters Garden Sages Plant Identifier
Could this be it, Cissus trifoliata? @Texasviking does your plant have tendrils - I think I can maybe see some bottom left in one of the pictures ? If not can you take a picture of the way it clings to the tree trunk, is it by roots or by "suction cups"?

Last edited by sooby Jun 6, 2018 2:51 PM Icon for preview
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Jun 6, 2018 3:10 PM CST
Name: Leslieray Hurlburt
Sacramento California (Zone 9b)
The WITWIT Badge Region: California Plant Lover: Loves 'em all! Xeriscape Native Plants and Wildflowers Salvias
Foliage Fan Lover of wildlife (Black bear badge) Birds Bee Lover Hummingbirder Butterflies
I was responding to the original post not Texasviking.
Hamilton Square Garden, Historic City Cemetery, Sacramento California.
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Jun 6, 2018 4:53 PM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: Ukraine Region: United States of America Bird Bath, Fountain and Waterfall Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database!
Million Pollinator Garden Challenge Birds Butterflies Bee Lover Hummingbirder Container Gardener
Aha, I see the Confused now ... it appears that Texasviking tacked his I.D. request onto someone else's thread.

Good eye @sooby, it does look like Sorrelvine (Cissus trifoliata) which is found in Texas.

More images and info:
https://aggie-horticulture.tam...
http://sherylsmithrodgers.blog...
https://www.wildflower.org/pla...
https://www.inaturalist.org/ta...
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


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Jun 6, 2018 5:24 PM CST
Name: Sue
Ontario, Canada (Zone 4b)
Annuals Native Plants and Wildflowers Keeps Horses Dog Lover Daylilies Region: Canadian
Butterflies Birds Enjoys or suffers cold winters Garden Sages Plant Identifier
Yes, the original thread is a year old.
Avatar for Texasviking
Jun 6, 2018 7:43 PM CST

Texasviking is embarrassed and sirry tgat he gad not read the forum rules and piggybacked on someone else's question/thread.

I agree that it looks very much like Sorrel vine. And @sooby: yes, it has tendrils!
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Avatar for Texasviking
Jun 6, 2018 8:02 PM CST

Apologies. The pictures did not transfer well. But helieve me: distinct, curly tendrils.
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Last edited by Texasviking Jun 6, 2018 8:04 PM Icon for preview
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Jun 6, 2018 8:10 PM CST
Name: Sue
Ontario, Canada (Zone 4b)
Annuals Native Plants and Wildflowers Keeps Horses Dog Lover Daylilies Region: Canadian
Butterflies Birds Enjoys or suffers cold winters Garden Sages Plant Identifier
Your pictures show the tendrils clearly enough. Here are some pics of the tendrils on Cissus trifoliata so you can compare. I think I read in one article that it can cause dermatitis in some people.

https://www.google.com/search?...

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