don't recall any single-stem plants, if that's what you mean
only ever saw Christmas-tree shaped plants in the fields in Manipur
Here's one of my manipuri flowers from a few years back:
Just to clarify, both kerala and manipuri were vegged for about 2 weeks and then put into flowering mode. I don't give the plants space, they're all crowded together, which discourages branching and encourages longer, stick like growth. Despite the crowding, Kerala still branched like crazy!
You're absolutely right though, if you veg out manipuri, give them the space they need, and veg. them properly before flowering, they'll produce lots of side branches.