This flower was taken in the green shed of the hotel restaurant in Ho Chi Minh City, Vietnam. I don't know its name. I can't find the relevant information in China, please help me, thank you.

Coral rattan, also known as rockhopper, phoenix gem, purple bud rattan, Asahi rattan, rising sun rattan, etc. Semi-deciduous lianas of the genus Corallina in Polygonaceae. Up to 10 meter with tendrils. Courtyard greening is good, but not cold-tolerant. If the temperature is lower than 10, you will die. Guangdong, Guangxi and southern Yunnan can all be cultivated.