very deep insight ... I feel it looks somehow sexual
"Homoerotic" -- two male parts here
The flowers do show a surprising variation in their build: staminate, pistillate, or dioecious flowers in a confusing array of flowering plants. Some have aborted carpels, others actively "suck in" pollen through funnel-shaped structures. and perhaps there is some insect pollinators afoot as well, since some pistillate flowers do secret nectar. The latter observation was very unexpected and novel -- haven't seen this mentioned in any of the duckweed literature I have read the last years.
