Think Korean calls them crown flower, or Cho-do-ri-kot (girls formal head decoration for traditional Korean).

The flower look spectacular when it shines in the back light.

Another help to find name from friends.

Sometimes its hard to find what is the flowering time in Thailand.
Many of them bloom year-round, while it comes only in summer in other countries...

The pictures taken in February 2000 at Petchabun (northern Thailand).

24 March 2000