Xanthostemon is a genus of trees and shrubs, constituting part of the myrtle plant family Myrtaceae.In European science, this genus was first described in 1857 by German–Australian botanist Ferdinand von Mueller.According to different official sources between 46 to 51 species are known to science.They grow naturally in New Caledonia, Australia, the Solomon Islands and Malesia, including the Philippines, New Guinea and Indonesia.