Royal Botanic Gardens, Kew is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. An internationally important botanical research and education institution, it employs 1,100 staff. Its board of trustees is chaired by Dame Amelia Fawcett.
Dioscoreaceae is a family of monocotyledonous flowering plants, with about 715 known species in nine genera. The best-known member of the family is the yam.
Sceptridium is a genus of seedless vascular plants in the family Ophioglossaceae, closely allied to the genus Botrychium. It is also closely related to the genus Botrypus. Sceptridium species are commonly called the grape-ferns.
Delonix is a genus of flowering plants in the family Fabaceae, subfamily Caesalpinioideae. It contains trees that are native to Madagascar and East Africa. By far the best known species is the Royal Poinciana.
Malvaviscus is a genus of flowering plants in the mallow family, Malvaceae. Common names for species in this genus include Turk's cap mallow, wax mallow, sleeping hibiscus, and mazapan. It belongs to a group of genera that differ from the closely related Hibiscus in possessing a fruit divided into 5 separate parts, and having a style surmounted by 10, rather than 5, capitate or capitellate stigmas. Among those genera Malvaviscus is distinguished by having auriculate petals and red, fleshy fruits. The generic name is derived from the Latin words malva, meaning "mallow," and viscus, which means "sticky," referring to the mucilaginous sap produced by members of the genus. The fruit can be used to make jelly or syrup. Both the fruit and flowers are used to make herbal teas.
Petalostigma is a genus of plants under the family Picrodendraceae and the monogeneric subtribe Petalostigmatinae, first defined by von Mueller in 1857. It is native to New Guinea and Australia. They are evergreen, dioecious shrubs or trees.
Polystichum is a genus of ferns in the family Dryopteridaceae, subfamily Dryopteridoideae, according to the Pteridophyte Phylogeny Group classification of 2016. The genus has about 500 species and has a cosmopolitan distribution. The highest diversity is in eastern Asia, with about 208 species in China alone; the region from Mexico to Brazil has at least 100 additional species; Africa, North America, and Europe have much lower diversity. Polystichum species are terrestrial or rock-dwelling ferns of warm-temperate and montane-tropical regions. They are often found in disturbed habitats such as road cuts, talus slopes, and stream banks.
Physocarpus, commonly called ninebark, is a genus of flowering plants in the family Rosaceae, native to North America and northeastern Asia.
Thomandersia is the sole genus in the Thomandersiaceae, an African family of flowering plants. Thomandersia is a genus of shrubs and small trees, with six species native to Central and West Africa.
Schaefferia is a genus of flowering shrubs and small trees in the family Celastraceae. The generic name honours German mycologist and clergyman Jacob Christian Schäffer (1718–1790). Members of the genus are found in the Neotropics. The plants are dioecious, with flowers that are unisexual due to abortion. The flowers are usually clustered in the leaf axil, although they are solitary in some species. The calyx of the flowers has four lobes, and the corolla consists of four petals. The ovary consists of two locules; each locule contains a single ovule which develops into a single seed. The fruit is a drupe.
Subularia is a genus of plants in the family Brassicaceae. Subularia species are annual herbs that grow in moist or even flooded soils. There are only two species of the genus: Subularia aquatica, which is widespread in North America and Europe; and Subularia monticola, from Africa mountains. Awlwort is a common name for plants in this genus.
Columelliaceae is a family of trees and shrubs native to the Andes of South America.
Flora of China is a scientific publication aimed at describing the plants native to China.
Trema orientale is a species of flowering tree in the hemp family, Cannabaceae. It is known by many common names, including charcoal-tree, Indian charcoal-tree, pigeon wood, Oriental trema, and in Hawaii, where it has become naturalized, gunpowder tree, or nalita. It has a near universal distribution in tropical and warm temperate parts of the Old World, with a range extending from South Africa, through the Middle East, the Indian subcontinent and southern China to Southeast Asia and Australia.
The World Checklist of Selected Plant Families was an "international collaborative programme that provides the latest peer reviewed and published opinions on the accepted scientific names and synonyms of selected plant families." Maintained by the Royal Botanic Gardens, Kew, it was available online, allowing searches for the names of families, genera and species, as well as the ability to create checklists.
Orthopterygium is a monotypic genus of dioecious plants in the subfamily Anacardioideae of the cashew and sumac family Anacardiaceae. It contains the single species Orthopterygium huaucui, which is endemic to western Peru.
Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by 2020". The initial focus was on tropical African Floras, particularly Flora Zambesiaca, Flora of West Tropical Africa and Flora of Tropical East Africa.
The Interim Register of Marine and Nonmarine Genera (IRMNG) is a taxonomic database which attempts to cover published genus names for all domains of life, from 1758 in zoology up to the present, arranged in a single, internally consistent taxonomic hierarchy, for the benefit of Biodiversity Informatics initiatives plus general users of biodiversity (taxonomic) information. In addition to containing just over 500,000 published genus name instances as at May 2023, the database holds over 1.7 million species names, although this component of the data is not maintained in as current or complete state as the genus-level holdings. IRMNG can be queried online for access to the latest version of the dataset and is also made available as periodic snapshots or data dumps for import/upload into other systems as desired. The database was commenced in 2006 at the then CSIRO Division of Marine and Atmospheric Research in Australia and, since 2016, has been hosted at the Flanders Marine Institute (VLIZ) in Belgium.
