Um? Separate them?

I think they are planted in the ground.

We need closer pics!

If they are males they are the healthiest males I have seen in a while. My guess is that you have a few skinny plants in the patch. Keep your eye on those as males tend to be taller and less bushy then females. Usually that is.

To really tell we need pics of the tops or close to the nodes. Can you get us some closeups?

Mendokid