Looks to me like a very bloted ferocactus herrerae.
Though could be latispinus as these are mass produced. would recommend a bright spot ,, be careful of scorch,,
And no more water. Possibly one drink before winters rest. Good luck

That name is very appropriate . Mine growing in the Polly tunnel sometimes look very dead. They don't seem to like it outside overwinter with me. Maybe to wet? They soon recover from looking brown and withered, in the spring. Growing well in shade. I think they might do well in the right dry shady s...

A side view, not very good pic, it doesn't photograph well.
I'm a bit of a euphorbia nut , so I like it.
Ralph, your plant is a giant so will sprawl a bit, I'll have to put up my next greenhouse, before mine gets that big, though I think I've got a bit of time

Euphorbia gottlebei . Quite tricky to get a decent photo of these flowers, I'm happy with this one.

As David suggests for first a third, not sure about the other two .

That's beautifull Terry liking the slightly longer video. I said they should have got you to film the moon flower opening.
Thank you

The contrast between the flower and those spines is fantastic,
Love it

As Chris said I hope he's alright. I've bought plants from him in the past, mainly selling on plants from someone's collection. Good plants. Never purchased from the Web site as stated its not updated. Calling him sounds like good advice. Always was decent with me. I've met him a couple of times at ...

Hi Darren
This is long and spindely, definitely awkward to photograph. The flower has gone over
Maybe I'll catch the next one

Grown from a leaf . ten leaves produced about 20 plants .not all have done as well as this one, though about six have,