This is another illusion. The flower is of a South American (Cannonball) tree known also as a Sri Lankan 'Sala' tree. In one of my posts a year or so back I talked about this 'misconception' and offered a (Wikipedia) picture of a native Indian Sal tree (the more likely 'Sala' tree).

See สาระ ของ สาละ https://www.gotoknow.org/posts/549520 and

this พรรณไม้ในพุทธประวัติ - 2 สาละ https://www.gotoknow.org/posts/296511

A few things around that part of the country: ข้าวโพดเทียน ขนมจาก ปลาสลิดแห้ง... I hope still around. ;-)