...balls and stipules.
I'm guessing it's the latter that confuses some people. Especially when they are small and frosty they can appear to be pistils.
A male I've grown out earlier this year:
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Later stage below. Each ball contains 5 bananas, which contain the actually pollen, which is released shortly after the ball opens like an umbrella:
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Plants that hermie in an early stage, basically not fully committing to one sex, have male balls as well as female calyxes.
The common stress hermies later in flowering (after it committed to female) spawn bananas aka 'nanners' in female flowers (which we tend to call hermie, but isn't really hermaphrodite). Nanner is in middle at bottom:
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Unfortunately the albums are missing, best pic I've seen is from, if I remember correctly,
@SxIstew with nanners+pistils growing out of a calyx itself.
Trickier to detect, and harder to see if they actually contain pollen that's about to spread. They grow very fast, but the pollen in it needs some time to develop as well. Green is safe, yellow is bad. Female hermies with balls you kill, female hermies with nanners you can consider removing partly or even remove the individual nanners.