Sometimes the calyx looks an awful lot like a nanner. Look close (magnifying glass) to see if any hairs are trying to poke out of 'em. If there's a pointy end to the nanners likely they are not nanners.
Also, try to get a cleaner picture. If you can set the camera on something solid, and turn off fans before the shot, it might help.

I've tossed-out fems I thought were males (and kept what I thought was a juvenile male, for breeding) just to find-out they were all females, but some had weird calyx's.
Are there clusters, or just single 'nanners' here and there? On more than one plant?

Pistols (hairs) appear, look for pollen for about 4-6 weeks, then they fade away. (curl up, dry up, change colors...) Tiz natural, and not to be used as a sign of plant maturity.

Keeko: You keep a hermie mom for breeding...? How come...?