Plants named in 1790

Alnus glutinosa, the common alder, black alder, European alder, European black alder, or just alder, is a species of tree in the family Betulaceae, native to most of Europe, southwest Asia and northern Africa. It thrives in wet locations where its association with the bacterium Frankia alni enables it to grow in poor quality soils. It is a medium-sized, short-lived tree growing to a height of up to 30 metres (98 feet). It has short-stalked rounded leaves and separate male and female flowers in the form of catkins. The small, rounded fruits are cone-like and the seeds are dispersed by wind and

Dimocarpus longan, commonly known as the longan and dragon's eye, is a tropical tree species that produces edible fruit. It is one of the better-known tropical members of the soapberry family Sapindaceae, to which the lychee and rambutan also belong. The fruit of the longan is similar to lychee, but has a milder, and more subtle aroma and sweetness. The species is native to Southeast Asia and southern China. Today, China, Thailand, and Vietnam are the largest producers of longan fruit, together accounting for approximately 95% of global production.

Vincetoxicum hirundinaria, commonly named white swallow-wort, is a long-lived herbaceous perennial of the genus Vincetoxicum in the family Apocynaceae.

Fagopyrum tataricum, also known as Tartary buckwheat, green buckwheat, ku qiao, Tatar buckwheat, or bitter buckwheat, is a domesticated food plant in the genus Fagopyrum in the family Polygonaceae. With another species in the same genus, common buckwheat, it is often counted as a cereal, but the buckwheats are not closely related to true cereals. Tartary buckwheat is more bitter and contains more rutin than common buckwheat. It also contains other bioactive components such as flavonoids, phenolic acids, 2-hydroxybenzylamine and quercitrin.

Osmanthus fragrans (lit. 'fragrant osmanthus') is a species of flowering plant in the family Oleaceae. In English, it is sometimes referred to by the common names sweet osmanthus, sweet olive, tea olive, and fragrant olive. It is native to Assam, Cambodia, China, the Himalayas, Hainan, Japan, Myanmar, Taiwan, Nepal, Thailand, and Vietnam. In China it grows in the provinces of Guizhou, Sichuan, Hainan, and Yunnan. In China, it is the "city flower" of the cities of Hangzhou, Zhejiang; Suzhou, Jiangsu; and Guilin, Guangxi. In Japan, it is the "city tree" of Kitanagoya, Aichi Prefecture; Kashima,

Osmanthus is a genus of about 30 species of flowering plants in the family Oleaceae. Most of the species are native to eastern Asia (China, Japan, Korea, Southeast Asia, the Himalayas, etc.) with a few species from the Caucasus, New Caledonia, and Sumatra. Osmanthus has been known in China since ancient times with the earliest writings coming from the Warring States period; the book Shanhai Jing: Nanshan Jing (Classic of Mountains and Seas: Classic of the Southern Mountains) states: "The first peak of the Que Mountain range is Mount Zhaoyao, rising by the western sea, where many osmanthus

Campsis, commonly known as trumpet creeper or trumpet vine, is a genus of flowering plants in the family Bignoniaceae, native to woodlands in China and North America. It consists of two species, both of which are vigorous deciduous perennial climbers, clinging by aerial roots, and producing large trumpet-shaped flowers in the summer. They are reasonably hardy and do well with the support of a wall, preferring full sun.

Hyphaene is a genus of palms native to Africa, Madagascar, the Middle East, and the Indian subcontinent. The genus includes the Doum palm (H. thebaica). They are unusual among palms in having regular naturally branched trunks; most other palms are single-stemmed from the ground. In Swahili, it is called koma.

Aerides, known commonly as cat's-tail orchids and fox brush orchids, is a genus belonging to the orchid family (Orchidaceae, subfamily Epidendroideae, tribe Vandeae, subtribe Aeridinae). It is a group of tropical epiphyte orchids that grow mainly in the warm lowlands of tropical Asia from India to southern China to New Guinea. They are valued in horticulture for their racemes of showy, fragrant, colorful flowers. The name of the genus refers to the epiphytic growth habit of the species, and literally means "air-plant". The type species, Aerides odorata, was described by João de Loureiro in

Aglaia is a genus of 121 recognised species of woody dioecious trees in the mahogany family Meliaceae. They occur in the subtropical and tropical forests of Southeast Asia, northern Australia and the Pacific. Some species are important timber trees; others have scented flowers, or medicinal properties (the edible fruits duku or langsat have now been placed in the genus Lansium). Many have complex biological relationships with their dispersal agents.

Lemon basil, hoary basil, Thai lemon basil, or Lao basil, (Ocimum × africanum) is a hybrid between basil (Ocimum basilicum) and American basil (Ocimum americanum). The herb is grown primarily in northeastern Africa and southern Asia for its fragrant lemon scent, and is used in cooking. Lemon basil stems can grow to 20–40 cm (8–20 in) tall. It has white flowers in late summer to early fall. The leaves are similar to basil leaves, but tend to be narrower with slightly serrated edges. Seeds form on the plant after flowering and dry on the plant. Lemon basil is a popular herb in Arab, Indonesian,

Mangifera foetida (also called horse mango, malmut, limus, bachang, machang, and kemantan in Borneo) is a species of flowering plant in the family Anacardiaceae. It is found in wet-land rainforest regions of Borneo, Cambodia, Indonesia, Malaysia, Myanmar, Thailand, and Vietnam.

Coleus (, KOH-lee-əs) is a genus of annual or perennial herbs or shrubs, sometimes succulent, sometimes with a fleshy or tuberous rootstock, found in the Afro-Eurasia tropics and subtropics. The relationship among the genera Coleus, Solenostemon and Plectranthus has been confused. Coleus and Solenostemon were sunk into Plectranthus, but recent phylogenetic analysis found Plectranthus to be paraphyletic with respect to other related genera in the subtribe Plectranthinae. The most recent taxonomic treatment of the genus resurrected Coleus, and 212 names were changed from combinations in

Caryota mitis, known as the clustering fishtail palm or fishtail palm, is a species of palm native to Tropical Asia from India to Java to southern China, now sparingly naturalized in southern Florida and in parts of Africa and Latin America. The species was originally described from Vietnam in 1790. In Florida, it grows in hummocks and in disturbed wooded areas.

Striga, commonly known as witchweed, is a genus of parasitic plants that occur naturally in parts of Africa, Asia, and Australia. It is currently classified in the family Orobanchaceae, although older classifications place it in the Scrophulariaceae. Some species are serious pathogens of cereal crops, with the greatest effects being in savanna agriculture in Africa. It also causes considerable crop losses in other regions, including other tropical and subtropical crops in its native range and in the Americas. The generic name derives from Latin strī̆ga, "witch". Witchweeds are characterized

Erythrina fusca is a species of flowering tree in the legume family, Fabaceae. It is known by many common names, including purple coraltree, gallito, bois immortelle, bucayo, and the more ambiguous "bucare" and "coral bean". E. fusca has the widest distribution of any Erythrina species; it is the only one found in both the New and Old World. It grows on coasts and along rivers in tropical Asia, Oceania, the Mascarene Islands, Madagascar, Africa, and the Neotropics. The easy-to-grow and attractive flowering tree is cultivated as an ornamental shade and hedge plant. It is a common shade tree in

Derris is genus of leguminous plants. It contains 65 species, which range from eastern Africa to the Indian subcontinent, Southeast Asia, New Guinea, northern Australia, and the southwest Pacific islands. The roots of D. elliptica contain rotenone, a strong insecticide and fish poison. Despite the secondary compounds found in Derris, they serve as food plants for many Lepidopteran larvae including Batrachedra spp.

Cinchona pubescens, also known as red cinchona and quina or kina (Spanish: Cascarilla, cinchona; Portuguese: quina-do-amazonas, quineira), is native to Central and South America. It is known as a medicinal plant for its bark's high quinine content- and has similar uses to C. officinalis in the production of quinine, most famously used for treatment of malaria.

Neptunia oleracea (not to be confused with Neptunia plena) is a species of flowering plant in the legume family, Fabaceae. It is sometimes referred to in English by the common names water mimosa or sensitive neptunia. It is pantropical nitrogen-fixing perennial legume. Genus and common name come from Neptune, god of the sea, in reference to the aquatic habit of some species in the genus. Its specific epithet oleracea means "vegetable/herbal" in Latin and is a form of holeraceus (oleraceus).

Enkianthus is a genus of shrubs or small trees in the heath family, Ericaceae. Its native range is in Asia, as far west as the eastern Himalayas, as far south as Indochina, and as far north and east as China and Japan. This genus is considered cladistically the most basal member of the Ericaceae, that is, the descendant of the common ancestor of that Ericaceae that branched earliest from the rest of that family. It is classified as the sole member of the subfamily Enkianthoideae.

Ligustrum sinense (Chinese privet; syn. L. villosum; in Mandarin: 杻; pinyin: chǒu) is a species of flowering plant in the family Oleaceae. This privet is native to China, Taiwan and Vietnam, and invasive in Réunion, the Andaman Islands, Norfolk Island, Costa Rica, Honduras, Panama and much of the eastern and southern United States (from Texas and Florida north to Kansas, Illinois, New Jersey, Massachusetts and Connecticut). The name "Chinese privet" may also refer to Ligustrum lucidum.

Elatine triandra is a species of flowering plant belonging to the family Elatinaceae. It is known by the common name longstem waterwort. Its native range is Temperate and Subtropical Old World to Western Malesia. In New England, it's regarded as introduced and has been documented in both Massachusetts and Maine and it is found primarily around rivers.

Baccaurea ramiflora is a species of flowering plant in the family Phyllanthaceae. This slow-growing evergreen tree is sometimes referred to in English by the common name Burmese grape. It grows up to 25 m (82 ft) in height, with a spreading crown and thin bark.

Baccaurea is a genus of flowering plants belonging to the family Phyllanthaceae. The genus comprises 51 species, distributed from India to Indochina, southern China, Malesia, New Guinea, and the West Pacific. It is dioecious, with male and female flowers on separate plants. Many species contain edible fruits.

Tetradium is a genus of trees in the family Rutaceae. It occurs in temperate to tropical East Asia. In older books, the genus was often included in the related genus Euodia (sometimes written, "Evodia" from Latin spelling), but that genus is now restricted to tropical species. In cultivation in English-speaking countries, they are known as Euodia, Evodia, or Bee bee tree. They are attractive trees with deciduous glossy pinnate leaves. Tetradium daniellii (syn. T. hupehensis) develops a smooth gray bark that resembles that of a beech tree and grows to a height of 20 metres (66 ft). The leaves

Stephania is a genus of flowering plants in the family Menispermaceae. It includes 70 species native to tropical and southern Africa, eastern and southern Asia, Australia, and the tropical Pacific Islands. They are herbaceous perennial vines, growing to around four metres tall, with a large tuber. The leaves are arranged spirally on the stem and are peltate, with the leaf petiole attached near the centre of the leaf. The name Stephania comes from the Greek, "a crown". This refers to the anthers being arranged in a crown-like manner.

Porphyra is a genus of coldwater seaweeds that grow in cold, shallow seawater. More specifically, it belongs to red algae phylum of laver species (from which comes laverbread), comprising approximately 70 species. It grows in the intertidal zone, typically between the upper intertidal zone and the splash zone in cold waters of temperate oceans. In East Asia, it is used to produce the sea vegetable products nori (in Japan) and gim (in Korea). There are considered to be 60–70 species of Porphyra worldwide and seven around Britain and Ireland, where it has been traditionally used to produce

Galeola is a genus of orchids in the family Orchidaceae belonging to the subfamily Vanilloideae. All species in this genus are myco-heterotrophic, i.e. they are parasitic upon fungi. The genus is spread throughout southeast Asia (from India to China to New Guinea) as well as Madagascar and Comoros. Galeola is of biological interest because of its exclusive myco-heterotrophic nature and its seeds. The seeds are the biggest orchid seeds in the world. They are winged, which is also extraordinary for an orchid.

Dimocarpus is a genus of trees or shrubs in the flowering plant family Sapindaceae. It includes 7 species which grow naturally in tropical south and Southeast Asia, Malesia, Papuasia, and Australasia, including Sri Lanka, India, the Philippines, southern China, Taiwan, Myanmar, Cambodia, Vietnam, Malaysia, Indonesia, New Guinea, East Timor, far north-eastern Queensland, Australia. The fruit is edible, with the longan (D. longan) being grown commercially for fruit production. The species are large evergreen trees growing to 25–40 m tall, with pinnate leaves. The flowers are individually

Trema is a genus of evergreen trees closely related to the hackberries (Celtis), occurring in subtropical and tropical regions of southern Asia, northern Australasia, Africa, South and Central America, and parts of North America. They are generally small trees, reaching 10–20 m (33–66 ft) tall.