1, its flowers are purple-white ring, a closer look like a ballerina dancing on the disk, but also like a clock on the text disk, the stamens are like the hour hand and minute hand, so in Japan is also known as the timepiece grass.

2, every blooming season, about nine o'clock in the morning, its passion fruit flowers will bloom, and in the afternoon when the sun goes down, about six o'clock, passion fruit flowers will close.

3. The petals look like a pinwheel, the pistil and stamen like hands, and the whole flower looks like a pocket-sized cute hour clock. The flower color is usually white petals and purple heart, but there are also red, pink, orange, light purple colors, flower shape is also slightly different.

4, passion fruit flowers large and peculiar, can be used as garden ornamental plants. The whole grass can be used as medicine.