The flower of Dragon fruit.
This is called Daom Djah in Khmer, I don’t know in English.
This photo is taken from internet, the article about this species of palm tree.
This tree had previously grown on the site of the temple across the river in this town. The man of my acquaintance said, “There is a rare palm tree in that temple, it took 100 years to grow, it finally bloomed an amazing flower, and then died. I went to see it, and a big flower like this was just blooming upwards. I think it was bigger than this picture.
The other day, when I went to see the big tree after a long absence, it fell from the root. And I thought what he was saying was true.
This uncommon species of palm has turned 100 and its flowers have come out from the top like a coronet. The tree is said to flower once in 100 years and dies soon after that.
This is a banana flower brought by the woman of the landlord.