Gerris2 said:I don't really know.
I think Ipomoea tuberosa is a synonym of Merremia tuberosa, but will have to heck a couple more sources.
Joseph,
I think you are right. I find a number of resources calling them both names.
I am not an expert on Convolvulaceae - but this plant, unlike the Ipomoea's I have seen so far, keeps its cotyledons in the seeds shell - see picture below. At least my 2 examples do so far. Does this "disqualify" it as an Ipomoea?
As expected from a plant born with such a large lunchbox - it's really taking off despite the lack of light here. Since the picture 2 days ago it's grown another 10 cm up a stick.
