Thomasia is a genus of plants which are native to southern Australia.
A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the largest country in Oceania and the world's sixth-largest country by total area. The neighbouring countries are Papua New Guinea, Indonesia and East Timor to the north; the Solomon Islands and Vanuatu to the north-east; and New Zealand to the south-east. The population of 25 million is highly urbanised and heavily concentrated on the eastern seaboard. Australia's capital is Canberra, and its largest city is Sydney. The country's other major metropolitan areas are Melbourne, Brisbane, Perth and Adelaide.
All but one species is restricted to the Southwest Botanical Province of Western Australia; the other occurs in South Australia and Victoria.
Western Australia is a state occupying the entire western third of Australia. It is bounded by the Indian Ocean to the north and west, and the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of 2,529,875 square kilometres, and the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. The state has about 2.6 million inhabitants – around 11 percent of the national total – of whom the vast majority live in the south-west corner, 79 per cent of the population living in the Perth area, leaving the remainder of the state sparsely populated.
South Australia is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of 983,482 square kilometres (379,725 sq mi), it is the fourth-largest of Australia's states and territories by area, and fifth largest by population. It has a total of 1.7 million people, and its population is the second most highly centralised in Australia, after Western Australia, with more than 77 percent of South Australians living in the capital, Adelaide, or its environs. Other population centres in the state are relatively small; Mount Gambier, the second largest centre, has a population of 28,684.
Victoria is a state in south-eastern Australia. Victoria is Australia's smallest mainland state and its second-most populous state overall, thus making it the most densely populated state overall. Most of its population lives concentrated in the area surrounding Port Phillip Bay, which includes the metropolitan area of its state capital and largest city, Melbourne, Australia's second-largest city. Geographically the smallest state on the Australian mainland, Victoria is bordered by Bass Strait and Tasmania to the south, New South Wales to the north, the Tasman Sea to the east, and South Australia to the west.
Thomasia grandiflora, commonly known as large-flowered thomasia, is a small shrub which is endemic to the south-west of Western Australia.
Thomasia macrocarpa, commonly known as large-fruited thomasia, is a shrub that is endemic to the southwest of Western Australia. It usually grows to between 0.6 and 2 metres in height. Pink to purple flowers are produced between August and November in the species native range.
Thomasia purpurea is a small shrub that is endemic to the southwest of Western Australia. It usually grows to between 0.3 and 1.2 metres in height. Pink to purple flowers are produced between April and December in the species native range.
Sterculiaceae was a family of flowering plants: based on the genus Sterculia. Genera are now placed in the family Malvaceae, in the subfamilies: Byttnerioideae, Dombeyoideae, Helicteroideae and Sterculioideae.
Baeckea is a genus of flowering plants in the myrtle family, Myrtaceae. There are about 75 species, of which 70 are endemic to Australia; the others are distributed in New Caledonia and Southeast Asia.
Chorizema is a genus of the legume family Fabaceae. They are small, evergreen shrubs and climbers native to scrub habitats in Australia, valued in cultivation for their pea-like flowers. Most species do not tolerate frost, and in temperate regions require the protection of glass.
Gastrolobium is a genus of flowering plants in the family Fabaceae. There are over 100 species in this genus, and all but two are native to the south west region of Western Australia.
Mirbelia is a plant genus belonging to the Fabaceae family. It is endemic to Australia, occurring in every mainland state except South Australia.
Dampiera is a genus of plants in the Goodeniaceae family which are endemic to Australia occurring in all states. They are herbaceous plants or small shrubs which have blue or purple flowers with yellow centres. The genus is named for William Dampier, an English sea captain and scientific observer. Dampiera diversifolia is sometimes grown in gardens as an ornamental.
Thryptomene is a genus of small shrubs in the family Myrtaceae described as a genus in 1838. The entire genus is endemic to Australia.
Keraudrenia is a genus of flowering plants native to Australia, New Guinea and Madagascar.
Bossiaea is a genus in the pea family (Fabaceae) consisting of about 70 species which are native to Australia. The genus is named in honour of Joseph Hugues Boissieu La Martinière, a botanist on La Pérouse's expedition to Australia.
Billardiera is a genus of small vines and shrubs in the family, Pittosporaceae, which is endemic to Australia. The genus was first formally described in 1793 by botanist James Edward Smith who named it in honour of Jacques Labillardière, a French botanist.
Lasiopetalum is a genus in the family Malvaceae containing around 35 species of shrub, which are native to Australia.
Daviesia, commonly known as Bitter-peas, is a large genus of flowering plants in the legume family. They are native to Australia, with a center of diversity in western Australia. The genus is named in honour of Hugh Davies, a Welsh botanist. They have nitrogen-fixing bacteria contained in root nodules like other genera in their family.
Calytrix is a genus of shrubs in the family Myrtaceae described as a genus in 1806. They are commonly known as starflowers. Calytrix are endemic to Australia, occurring in 4 of the 7 regions.
Comesperma is a genus of shrubs, herbs and lianas in the family Polygalaceae. The genus is endemic to Australia. It was defined by the French botanist Jacques Labillardière in his 1806 work Novae Hollandiae Plantarum Specimen. The genus name is derived from the Ancient Greek words come ("hair") and sperma ("seed"), and relates to the seeds bearing tufts of hair. The genus is distributed over southern Australia, particularly in the southwest of Western Australia, where 19 species are found. 24 species have been described.
Conostylis is a genus of perennial herbs in the family Haemodoraceae commonly known as cone flowers, endemic to the south west of Western Australia. They have leathery, strap-like leaves which arise from the base of the plant, sometimes from underground rhizomes. Flowers which usually occur in clusters on stalks which emerge from the bases of the leaves. Individual flowers have a short stalk with and six tepals which are either cream, yellow, orange or purple. The tepals join to form a short tube at the base with six similar stamens attached at the top of the tube.
Rulingia is a genus of flowering plants native to Australia and Madagascar. In 2011, all species were transferred to Commersonia with the exception of Rulingia cuneata, R. loxophylla, R.luteiflora and R. procumbens which have been transferred to the new genus Androcalva.