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, named in honor of Thomas Andrew Knight. One extant species, K. excelsa (rewarewa) is found in New Zealand. Two further Knightia species are found in New Caledonia, although they were 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", a placement supported in a 2006 classification of the Proteaceae. A fossil species from upper Miocene deposits in Kaikorai has been described as Knightia oblonga. Knightia has been placed in the tribe Roupaleae of the subfamily Grevilleoideae.
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.
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.
Derwentia was a genus of flowering plants that is endemic to Australia. The genus was formerly included in the family Scrophulariaceae, but is currently included in Plantaginaceae, and is treated as a synonym of the genus Veronica.
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.
Leptocarpus is a genus of dioeceous rush-like perennial plants described as a genus in 1810.
Eucarpha is a genus of flowering plant of the family Proteaceae, endemic to New Caledonia. Two species are recognised. Up to 1975, these were classified within the genus Knightia until Lawrence 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". Nomenclatural combinations for these two species in the genus Eucarpha were published in 2022. Other sources, including Plants of the World Online as of April 2022, treat Eucarpha as a synonym of Knightia.
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.
Meeboldina is a plant genus in the family Restionaceae, described as a genus in 1943. It is named for the botanical collector Alfred Meebold.
Desmocladus is a genus of herbs in the family Restionaceae, all species of which are endemic to Australia, and found in Western Australia and South Australia. In this genus, the stems are the principal photosynthesizers.
Desmocladus flexuosus is a rhizatomous, sedge-like herb in the Restionaceae family, endemic to south-west Western Australia.
Chaetanthus aristatus is a species of rush. It is found in Western Australia.
Leptocarpus laxus is a rush species of the genus Leptocarpus in the family Restionaceae. It is endemic to the south-west of Western Australia.
Tremulina is a genus of flowering plants belonging to the family Restionaceae. The genus was first described in 1998 by Barbara Briggs & Lawrie Johnson. The type species is Tremulina tremula.
Tremulina tremula is a plant in the Restionaceae family, found in the south-west of Western Australia.
Eucarpha deplanchei is a species of flowering plant in the family Proteaceae, native to New Caledonia. It was first described in 1865 as Knightia deplanchei, the name used by Plants of the World Online as of April 2022.
Eucarpha strobilina, synonym Knightia strobilina, is a species of flowering plant in the family Proteaceae, native to New Caledonia. Sources vary as to whether they place the species in Eucarpha or Knightia.
