Anonymous Flowers

There are many flowers in my mother's house, my grandmother's house, and also in my aunt's house yard that I have captured the pictures through my camera phone but I do not know the names of the flowers. One of them interest this one. I noticed that this flower blooms in the morning and will bud in the afternoon. Perhaps this is one of the characteristics of this flower. What stemian friend know the name of this flower? Please all the comments on my blog @ lyaandayani. Thank you