Can anyone ID this Rhipsalis?

Here's one of my outdoor-hardy plants. This one is particularly hardy; I rescued it as a broken cutting I found when taking a trailer of greenwaste to the local tip.



I'm guessing it's Rhipsalis (perhaps something from the now obsolete Rhisalidopsis), and Innes & Glass seem to have it as R. x graeseri.

Any clues?

i think Hatiora gaertneri.

nice colour, mine flowers pink.

remind me of zygos...

and yeah uber-hardy for sure.

btw it was absolutely bucketing down where im at about 20mins ago... never seen so much water it was a monsoon.

Ahh, of course... I'd forgotten how many plants fit in under Hatiora.

We copped a bit of the rain down here, but it was short and sharp. Thankfully, no hail.