Haiphong is the third-largest city in Vietnam and is the principal port city of the Red River Delta. The municipality has an area of 1,526.52 km2 (589.39 sq mi), consisting of 8 urban districts and 7 rural districts. Two of the rural districts cover islands in the South China Sea: Bạch Long Vĩ and Cát Hải. It has a population of 2,359,000 in 2021. The city's economy has strength in manufacturing, as evident by large industrial parks and numerous smaller traditional handicraft villages. Historically, Haiphong is the first place in Vietnam and Mainland Southeast Asia to get electricity.

Delonix regia is a species of flowering plant in the bean family Fabaceae, subfamily Caesalpinioideae native to Madagascar. It is noted for its fern-like leaves and flamboyant display of orange-red flowers over summer. In many tropical parts of the world it is grown as an ornamental tree and in English it is given the name royal poinciana, flamboyant, phoenix flower, flame of the forest, or flame tree.