It looks like P. 'Titan' to me.
Here is a plant doing, what I call, "Blooming in desparation" - it is very seriously malnourished -->
Here is one growing with much better nourishment -->
Here is a propagule, being grown with very good nutrition -->
Here is one that is growing in Winter leaf form, it has just had all its older/larger leaves stripped away for propagation -->
Here is a plant doing, what I call, "Blooming in desparation" - it is very seriously malnourished -->
Here is one growing with much better nourishment -->
Here is a propagule, being grown with very good nutrition -->
Here is one that is growing in Winter leaf form, it has just had all its older/larger leaves stripped away for propagation -->