Bauhinia blakeana or Hong Kong Orchid Tree is an orchid tree of the genus Bauhinia with large thick leaves and striking purplish red flowers. The fragrant, orchid-like flowers are usually 10 to 15 centimetres (3.9 to 5.9 in) across, and bloom from early November to the end of March. Although now cultivated in many areas, it originated in Hong Kong.

Known as Bauhinia blakeana in scientific parlance, the Hong Kong orchid tree is something of an enigma. Rather than being allied to what many of us think of as "real" trees, it’s a legume, which means its close kin include not oaks and sequoias, but the common or garden pea. Then, it could be that every Hong Kong orchid tree alive today is descended from a single tree. And, even though the flower has been Hong Kong’ s emblem since 1965, no one is sure if the tree is a true species, or a hybrid.