Thanks bboy (sorry but for some reason I didn't get the response via my email and just found your data). I looked this up but the missing section (and somewhat heart shape rather than just round) makes me think it's something else. I keep looking at water lily leaves to no avail. Someone gave me this thing so I've been curious ever since. Any other ideas? Even other categories to look under? I've googled images for "large tropical leaf" and "water lily leaf," "lotus leaf" etc...

It looks like a Saxifraga rotundiflora - but that doesn't have green flowers. (Pretty white ones, small and 'airy'). Maybe fortunei. Low-growing? Shady area and damp? Dies down for winter? Or stays active all year? Clumping? Or creeping?

Oh, if you're in oz then it could be a few more things. What about desfontainia spinosa? Not that it's native there but that it would be Hardy. There are also some holly-leaf banksia but this doesn't look like them to me.

welcome to the forums ... it often helps to add big city name ... z5 alone is almost half the US ... and sometimes location helps ... they speak of the wild species ... you see the tall wild kin of these lining the roadways of MI in fall .... though not for the small garden.. they can make quite a statement en masse .... ken