Maybe Chanin will know...outstanding specimen you have there

That color is great. Is it always colored like that with the right light?

I think the cool nights and warm days help

Hi Bryan, that's so striking.
I've seen at least 4 kinds of Hechtia that bloom here, H. glauca, H. rosea,
which I used to post pics in this forum, and two unknown.
They all seem to be dioecious, only male or female flower.
If your has both sex, I think it should set seed.

This morning I found this unknown Hechtia blooming in my xeric garden.

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They were mating on the flower stalk.
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It appears to be female plant.
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Any idea, what species it should to be?