Kerry, it looks like T. polystachia.

Thanks Gonzer. That is what I suspected, but the leaves are not as wide and recurved as another Till I have by the same name - nor do they have any obvious silvery trichomes, and are of a yellow green colour. The pics on fcbs site, and Uncle Derek's comments on the belloensis/polystachia/xsmalliana/parviflora complex still confused me in relation to the Till in question. So I also sent those photos to Uncle Derek, to which he has kindly responded, and he agrees with you - that it is Till. polystachia!
You have both convinced me - thanks!

Cheers,
Kerry