The flower on the flag of Hong Kong is a Bauhinia.Bauhinia is a tree or shrub plant belonging to the genus Bauhinia of Leguminosae.Its flowers usually open in clusters of 4-10 before they grow leaves.It has many varieties, most varieties of flowers for purple or rose red, a few varieties of white color.It is the district flower of Hong Kong and the campus flower of Tsinghua University.

1. Affection: The Bauhinia flower can represent affection and has the symbolic meaning of family reunion.The flag of Hong Kong is painted with this flower, which can symbolize the strong affection between Hong Kong and the mainland of China.
One Country, Two Systems: The Hong Kong flag has a red background with white Bauhinia flowers painted on it.Red is the colour of the national flag of China, which can represent the motherland, while Bauhinia is the regional flag of the Hong Kong Special Administrative Region, which can represent Hong Kong.So it can also represent that Hong Kong belongs to China.The difference between the two colors can also represent "one country, two systems".
