I don't doubt that
Polyploidal plants can be
Faciated--
but I don't think all Faciated plants are Polyploidal...
I agree, else I'm going to be really depressed for not keeping my quad poly that produced mine. ;)
@OP, check out my thread in my sig, I got one of these going now and some comments about it. In my opinion it's not a desirable trait, but I'm flowering it anyway. Your stem is even wider than mine. I considered topping it, but decided to do the opposite. Especially in its early stage the 8 or so leaves that were created simultaneously created such a thick layer that the lower branches remained skinny and short. Some of my leaves on the main stem don't come with a lateral shoot above it. I trimmed those, and most of the side shoots. In hindsight topping it early could have resulted in a more normal plant, but that also would have been the downside; I actually want to observe the mutation.