I am pretty sure it's the plant sold as normal Limnophila aromatica in Asia.
That one looks like this http://www.mahiran.com/mahiran_content/media/image/2011/08/3398_orig.jpg
I tried to find more about this plant a while back and the only thing I could find was that in the US they called it Limnophila sp. Broad.
I have grown this and limnophila belem both emerse and submerse and they are nearly identical apart from coloration. I wouldn't be surprised if the belem is a variegation of this plant. I will try to get some flowers out of both in the greenhouse next year.
That one looks like this http://www.mahiran.com/mahiran_content/media/image/2011/08/3398_orig.jpg
I tried to find more about this plant a while back and the only thing I could find was that in the US they called it Limnophila sp. Broad.
I have grown this and limnophila belem both emerse and submerse and they are nearly identical apart from coloration. I wouldn't be surprised if the belem is a variegation of this plant. I will try to get some flowers out of both in the greenhouse next year.