Recently I often see this flower. They really look like morning glories which are symbolic flowers of summer. But they are still coming out one after another even today. I've been wondering what they are.
Today I realized these flowers are called "Ocean-blue" or "Ryukyu Morning Glory". They are wild morning flowers much stronger than ordinary ones. They spread from Okinawa and the southern islands. They can bloom from morning till evening, and from summer till frost falls in winter. Amazing!
Ocean-Blue is beautiful as well as strong. I'll list it as one of my favorites.