Calyx growth on fan leaves

So, I'm about a week away from harvest and I just noticed one of my plants has calyx and pistils growing on a fan leaf. I'm by no means a veteran grower, but this seems strange?

I can post pictures if this is a rare occurence.

It happens. I've seen calyx development on the middle of a leaf stem (No node).

ive also seen it on some of my outdoor crop like 3 or 4 years ago the whole leaf turns into a weird...calyxleaf bud, it looked messed up like where all the leaves come together if u flipped it over it looked like the stem the bud grew on, weird shit