What Is It

Question

This is growing up my trellis do you know what it is ?

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Answer 1

Another consideration is honeysuckle. You'll likely find out which once it flowers.

Answer 2

It looks much like a type of winter creeper (Euonymus fortunei), which is highly variable. It is considered invasive in many areas.

https://www.gardeningknowhow.com/ornamental/vines/wintercreeper/euonymus-wintercreeper-vines.htm