My Leptotes bicolor.
I've been growing this for three years, and it has become one of my favorite.
I count 22 flowers, which is a big improvement from just 8 flowers last year. (and meager 4 flowers the year before that)
Interestingly, the flowers are aligned on a bit odd diagonal line.
Tilting my phone so that flowers are in horizontal...
The column of Lpt bicolor reminds me of the head of some insects.
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BTW, I'm growing this on one of the my experimental, DIY plastic mesh cylinder mount, inside of it lined with sliced and perforated dish washing scrub pads, and filled with lava rocks. My plant seems to like this.