Let's talk about it.
My experience is limited to a handful of nanners on one of my first grows, pictures, and a little googling for my own edification.
Speaking autodidactically, nanners grow from buds, not bud sites. So, nanners can aim in most direction.
Those nanners are growing from what would otherwise be growing flowers. If you get in on them, you can see calyxes. Those nanners are actually growing in underdeveloped flowers and are larger than the calyxes they are growing in. Well developing nanners in small calyxes. Get me?
Now, about those flowers. It looks like they are on lower stems. Maybe first a first stem on a main branch? Personally, I'd get rid of the whole stem. That flower isn't going to give you much more than a swear word at harvest and you will spend valuable dope smoking time getting rid of the nanners.