Thanks, Bobby. I knew you were the knowledgeable guy

These guys most likely used them for rope making, nothing else. Your photo sure helps to perfect my plants, I see they need sideshoots also, not just leaves on a main stem. And much lighter leaves. But I'm afraid they're ST.
It was hard to find a decent photo of the mature flowered tops for modeling purposes (image on white for a crosshatch mesh), so I left those out.