This is a list of the terrestrial flora of the Houtman Abrolhos.
Only vascular plants are listed — there have been some collections of mosses, liverworts and lichens from the Houtman Abrolhos, but no information has been published on these non-vascular groups.
[1] The distribution of each species within each island group is provided.
Islands without a formally gazetted name are referred to by informal names, given in quotation marks.
A grey background indicates a naturalised species.