Thanks guys, the cunjevoi I know up here is a darker green and glossy, and the leaves are attached to the stem differently, which usually means they point upward or outwards.
I am not familiar with the name you mentioned koalaboi though I have been looking it up .
These ones I found the stem attaches to beneath the bottom of the leave in a way that the leave points downward, and is a lighter green color beneath the leave.
Here is a pic of them,
And here are their corms. I picked smaller plants, so I would say they will be larger on some too,
Here are the leaves on the right of those I found , next to some taro I am growing (left) that was given to me by some people from png.

I thought they could help me identifying them, however apart from it looking different , and saying it could possibly be wild taro which they said people there don’t really eat . They couldn’t say either ,
Another gardener I know couldn’t tell either. So more investigating.
As there is so many varieties some and similar looking plants some toxic like cunjevoi I don’t want to take chances either.