Frangipani or Plumeria flowers are most fragrant at night in order to lure sphinx moths to pollinate them. However the flowers have no nectar and simply dupe their pollinators. The moths inadvertently pollinate them by transferring pollen from flower to flower in their fruitless search for nectar.
At first look it appears to be a complicated structure. But the discerning eye sees a simple growth pattern. Quite a pessimistic outlook, but evidently a great optimist of a plant. Or ask a sphinx moth!To Live in the Hearts We leave Behind, is to Never Die