The Restionaceae, also called restiads and restios, are a family of flowering plants native to the Southern Hemisphere; they vary from a few centimeters to 3 meters in height. Following the APG IV (2016): the family now includes the former families Anarthriaceae, Centrolepidaceae and Lyginiaceae, and as such includes 51 genera with 572 known species. Based on evidence from fossil pollens, the Restionaceae likely originated more than 65 million years ago during the Late Cretaceous period, when the southern continents were still part of Gondwana.
Knightia is a small genus of the family Proteaceae endemic to New Zealand, and named in honor of Thomas Andrew Knight. One extant species, K. excelsa (Rewarewa) is found in New Zealand, while a fossil species from upper Miocene deposits in Kaikorai has been described as Knightia oblonga. Two species from New Caledonia, described in the genus Knightia have been placed in the genus Eucarpha by Lawrie Johnson and Barbara Briggs in their influential 1975 monograph "On the Proteaceae: the evolution and classification of a southern family"., although the nomenclatural combinations have never been published as of today.
Xylomelum is a genus of six species of flowering plants, often commonly known as woody pears, in the family Proteaceae and are endemic to Australia. Plants in this genus are tall shrubs or small trees with leaves arranged in opposite pairs, relatively small flowers arranged in spike-like groups, and the fruit a woody, more or less pear-shaped follicle.
Lomatia is a genus of 12 species of evergreen flowering plants in the protea family Proteaceae. Within the family, they have been placed, alone, in their own subtribe, Lomatiinae according to Johnson & Briggs 1975 classification of the family and subsequently in Flora of Australia (1995).
The Grevilleoideae are a subfamily of the flowering plant family Proteaceae. Mainly restricted to the Southern Hemisphere, it contains around 46 genera and about 950 species. Genera include Banksia, Grevillea, and Macadamia.
Triunia is a genus of medium to tall shrubs or small trees found as understorey plants in rainforests of eastern Australia. Members of the plant family Proteaceae, they are notable for their poisonous fleshy fruits or drupes. Only one species, T. youngiana, is commonly seen in cultivation.
Roupala is a Neotropical genus of woody shrubs and trees in the plant family Proteaceae. Its 34 species are generally found in forests from sea level to 4000 m altitude from Mexico to Argentina.
Acidonia microcarpa is a species of shrub in the plant family Proteaceae. It is the only species in the genus Acidonia. It is endemic to the south coast of the Southwest Botanic Province of Western Australia.
Apodasmia is a group of plants in the Restionaceae described as a genus in 1998. It is native to Australia, New Zealand, and Chile.
Hypolaena is a plant genus in the family Restionaceae, described as a genus in 1810. The entire genus is endemic to Australia.
Baloskion is a genus of rush-like plants from Australia.
Baloskion tetraphyllum is a rush-like plant in the family Restionaceae. Common names include tassel rope-rush, plume rush and Australian reed.
Placospermum is a genus of a single species of large trees, constituting part of the plant family Proteaceae. The species Placospermum coriaceum is endemic to the rainforests of the wet tropics region of northeastern Queensland, Australia. Common names include rose silky oak and plate-seeded oak.
Sphalmium is a monotypic genus of flowering plants in the protea family. The only species, Sphalmium racemosum, is a large forest tree. Common names include satin silky oak, mystery oak, Mt Lewis oak, poorman's fishtail oak and buff silky oak.
Eucarpha is a genus of flowering plant of the family Proteaceae, endemic to New Caledonia. Two species are recognised. Up until 1975, these were classified within the genus Knightia until Lawrie Johnson and Barbara G. Briggs recognised their distinctness, particularly their prominent bracts, in their 1975 monograph "On the Proteaceae: the evolution and classification of a southern family". As of today, the nomenclatural combinations for these two species in the genus Eucarpha have not been published.
Malagasia is a monotypic genus of trees in the family Proteaceae. The sole species is Malagasia alticola, endemic to Madagascar.
Dapsilanthus is a genus of plants described as a genus in 1998.
Eurychorda is a group of plants in the Restionaceae described as a genus in 1998. There is only one known species, Eurychorda complanata, endemic to Australia.
Chaetanthus aristatus is a species of rush. It is found in Western Australia.
Chordifex microdon is a rush species of the genus Chordifex in the family Restionaceae, native to Western Australia.
