Polyploid plants have 2 sets of identical chromosomes, so some interesting growth occurs. Here are some pics if you’ve never seen one.
You can see in the pic of the structure that the plant has 2 mains. It isn’t from topping. It grew like that naturally. The main on the right is growing more dense than the other one. You can see that in one of the pics I took from the top (where it looks like too many branches/leaves all trying to grow out at once.
It’s hard to see in the pics, but the mains are structured like ribbon cables in that they are somewhat flat and very wide.
You can see in the pics too that there is growth coming out in all directions from the nodes. In some places leaves or branches are growing out randomly. I stuck a pen sized highlighter in for one pic so you could see how big the stalks are on the mains. The plant isn’t very old and is only about a foot tall at most.