Most "Stylidium" species are endemic to Australia. In Western Australia alone, there are more than 150 species, at least 50 of which are in the area immediately around Perth. There are at least four species of "Stylidium" that are not confined to the Australian continent: "S. tenellum" is found in Myanmar, Melaka, and Tonkin; "S. kunthii" in Bengal and Myanmar; "S. uliginosum" in Queensland, Sri Lanka, and the south coast of China; and "S. alsinoides" in Queensland and the Philippines. The cladistic group "Stylidium" contains more than 230 individual species (more than 300 species exist, but many specimens have not yet been formally described), making it the fifth largest genus in Australia.