Spotted along roadside in India

Thanks a lot!

Thanks for the links and info. Only question still in my mind is most of these dragonfruit plants are spineless inspite of being in hot sun and most of them are growing big stems faster, mine is very spiny and with thin stem as well over many years

As i see it for many years, its not growing big stem but is creeping along the ground. By any chance its the species growing on trees which hangs down along stems gripping by its roots?

Thank you all for the guidance. Will let you know as things progress

This is behaving like a creeper or like a hanging one and never stands tall.

Please help ID this Mammillaria

IN iNDIA

In India