Grafted plants tend to go nutty colours especailly younger scions. You just never know, if it don't revert back to normal colour in a few months it could be a special plant.
Not sure of the sub species as this was a mixed bag of lopho seeds I received as a gift with another lot of seeds
I've got another one from the same seed batch that has huged raised tubercles. I will post a pic of that one too.