Does anyone know what cactus this is?

I have had this cactus a few years. It has grown a lot. I am wondering if you can ID it?


Looks like possibly Browningia hertlingiana.

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thank you Stan, maybe it’s not getting the right light over winter. Although I don’t see it go blue in the summer when it’s in full sun either. Could there be a green version?

Trichocereus pasacana, that’s what I think.

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I think we have a win! :slight_smile: Yes, that sure looks like it on google.
or what about Echinopsis terscheckii is that different or the same ? that really looks like it!