"Peloric" refers to a flower that is supposed to have bilateral symmetry, but instead develops radial symmetry.
Most orchids have three sepals outside three petals. One of the petals is modified to form the lip, and is normally very different from the other two petals. The two sides of an orchid flower are mirror images of each other, with just one lip in the middle.
In peloric flowers the other two petals become more like the lip, and the flower becomes more like a daisy, looking the same no matter which way you rotate it on the central axis.
There probably aren't many peloric Den phals with this coloring, so you might be able to track down the name of this one if you contact the grower.
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