what is this?

Question

A friend said it was probably greenbriar. Will it kill me in my sleep?

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Answer 1

This appears to be a Philodendron vine.
Do you have neighbors that have one growing on a balcony or windowsill?

Here is a link about this common houseplant.

https://www.gardeningknowhow.com/houseplants/philodendron/caring-for-philodendrons.htm