as i said, a triploid...
A polyploid is any plant with more than one leaf set...whats rare about this particular plant is most mj plants have 2 leaf sets per node, while this one has 3, making it a triploid. I had one of these also...I wont lie and tell you the high was anything different..however the plant did produce a nice amount and was very cool showing a mate a clone of it and he didnt believe me it was mj till he smelled it.
Congrats on a rare find..as others say fair few of them have been around here but all in all they are a rare find.