Libertia is a genus of monocotyledenous plants in the family Iridaceae, first described as a genus in 1824. It is native to South America, Australia, New Guinea, and New Zealand. Seven species are endemic to New Zealand.
Libertia is made up of herbaceous or evergreen perennials growing from short rhizomes, with simple, linear or narrowly lanceolate basal leaves which are often green but may be red, orange, or yellow under direct sunlight. The showy white or blue trimerous flowers are open in spring and are followed by capsules opening by three valves which contain the numerous seeds.