Euphorbia flowers in nature hold great attraction for insects and birds, like the two unlikely lunch partners having a meal in the picture. This plant is probably Euphorbia enopla.
Euphorbias are found in many parts of the world. They include the poinsettia, E. pulcherrima, from Central America. In China many Euphorbia hybrids based on E. millii are grown for their large and attractive flowers. They are thought to be lucky plants that bring fortune to their owners (Wikipedia).