Bitter gourd flower, Momordica charantia, family Cucurbitaceae

"Momordica charantia" is a tropical and subtropical vine of the family Cucurbitaceae, widely grown in Asia, Africa, and the Caribbean for its edible fruit. Its many varieties differ substantially in the shape and bitterness of the fruit. Bitter melon originated from the South Indian state of Kerala and was introduced into China in the 14th century.