I came across this vine/plant after starting to cut up an oak down on my property in a recent storm.

I'm suspicious it's poison sumac. Leaves of three, berries, etc.

Can anyone confirm? Robertson County.

Poison ivy.

Fire!!!!

Poison ivy

Is it? I'm familiar with poison ivy and have always known it to have serrated leaves.

Also, fire is NOT how you want to handle it.

Yes.

Poison ivy, a quite mature plant. 100%.

Don't believe it's poison ivy.

Pretty sure them is grapes. You can make jelly out of that or wine if you're a sinner.

100% poison ivy

Grapes?! Seriously?

Leaves of three, let it be.

Poison oak

Also changed my mind, those smooth leaves fooled me.

The Picture This app says it's poison ivy.

Im goin with sumac. I've not known poison ivy to have berries. But sumac does.

Poison Ivy leaves are usually serrated and the outer leaves have a thumb.

The branch you showed is young. If there are only three leaves, then poison Oak, not sumac. Sumac does not do clusters of 3, (3-13 leaflets). You're at the far end of Atlantic Poison Oak's range. Western Poison Oak doesn't exist natrually in Texas.

If you are brave it can be made as a lacquer for wood working. If you tap the sap it should be a milky white-yellow. Don't do this with a knife you value or use for food prep.

Other possibles:
Bottlebrush grows as a tree not a vine.
Mustang grapes would be close to ripe purple fruit and have pubescent on the underside.
Fringetree has white flowers and different leaf arrangement. Also not a vine.
Pokeweed has alternate leaf arrangements not opposite.

RM76 said:

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Don't believe it's poison ivy.

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I may want to change my mind. I went back and looked at the pics much more closely. It is sometimes hard for me to discern for sure with just a pic because of the lack of size comparisons, other angles, shades, etc. While poison ivy leaves can vary in shape, color, shade, glossiness, etc., especially as they age, even though those leaves in the photos are in pretty bad shape, I can make out faint "thumbs" in two of the outside leaves in the bottom picture. And they are both on the outside edge, so that is a key indicator that this may very well be poison ivy.

Poison Sumac isn't a widely distributed Texas plant, it only grows in very far east on the border w/Louisiana. It's a bush that likes damp/wet soil.

Poison Oak doesn't grow as a big vine that climbs up trees & it isn't that common.

If you just say "Poison Ivy" every time this question (Sumac/Oak/Ivy) is asked, you're going to be right about 99.5% of the time in Texas.

Quote:

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Other possibles:
Bottlebrush grows as a tree not a vine.
Mustang grapes would be close to ripe purple fruit and have pubescent on the underside.
Fringetree has white flowers and different leaf arrangement. Also not a vine.
Pokeweed has alternate leaf arrangements not opposite.

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If these are possible candidates for the OP's picture, I would also like to submit Mesquite, Pecan and Ragweed as contenders.

Yeah, I guess Sumac doesn't have the three leaf clusters.

It looks like what I've always know Poison Ivy to look like, with exception of the non-serrated leaves. A google image search brings up plenty of pictures of Poison Ivy with smooth leaves, so maybe this is just a slightly different variation from what I'm used to seeing further west in the state.

Regardless, it was suspect enough that I wasn't about to wade into it with the chainsaw. Maybe I'll leave this one for the mulcher I plan or hiring in a few months.

Used the photo you posted in my app and this is the result.

Definitely poison Ivy. Not all leaves conform perfectly to the shape standard but the plant structure is unmistakable.

Ivy's evil sister Prudance

It's this.

Actual picture I took last year (on the license plate thread on the automotive forum).