Plants named in 1843

The cowpea (Vigna unguiculata) is an annual herbaceous legume from the genus Vigna. It can be erect, semierect (trailing), or climbing. A high level of morphological diversity is found within the species with large variations in the size, shape, and structure of the plant. Four subspecies are recognised, three of which are cultivated. Its tolerance for sandy soil and low rainfall have made it an important crop in the semiarid regions across Africa and Asia. It was domesticated in Africa and is one of the oldest crops to be farmed. A second domestication event probably occurred in Asia, before

Lepidium meyenii, known as maca or Peruvian ginseng, is an edible herbaceous biennial plant of the family Brassicaceae that is native to South America in the high Andes mountains of Peru and Bolivia. It was rediscovered for commercial purposes at the Meseta de Bombón plateau close to Lake Junin in the late 1980s. It is grown for its fleshy hypocotyl that is fused with a taproot, which is typically dried but may also be freshly cooked as a root vegetable. As a cash crop, it is primarily exported as a powder that may be raw or processed further as a gelatinized starch or as an extract. If

Lemnoideae is a subfamily of flowering aquatic plants, known as duckweeds, water lentils, or water lenses. They float on or just beneath the surface of still or slow-moving bodies of fresh water and wetlands. Also known as bayroot, they arose from within the arum or aroid family (Araceae), so often are classified as the subfamily Lemnoideae within the family Araceae. Other classifications, particularly those created prior to the end of the twentieth century, place them as a separate family, Lemnaceae. These plants have a simple structure, lacking an obvious stem or leaves. The greater part of

Araucaria bidwillii, commonly known as the bunya pine, banya or bunya-bunya, is a large evergreen coniferous tree in the family Araucariaceae which is endemic to Australia. Its natural range is southeast Queensland with two very small, disjunct populations in northeast Queensland's World Heritage listed Wet Tropics. There are many planted specimens on the Atherton Tableland, in New South Wales, and around the Perth metropolitan area, and it has also been widely planted in other parts of the world. They are very tall trees – the tallest living individual is in Bunya Mountains National Park and

Triuridaceae are a family of tropical and subtropical flowering plants, including nine genera with a total of approximately 55 known species. All members lack chlorophyll and are mycoheterotrophic (obtain food by digesting intracellular fungi, often erroneously called 'saprophytes'). The heterotrophic lifestyle of these plants has resulted in a loss of xylem vessels and stomata, and a reduction of leaves to scales. The flowers of Triuridaceae have tepals which are fused at the base and contain 10 to many free carpels.

Phyllostachys is a genus of Asian bamboo in the grass family. Many of the species are found in central and southern China, with a few species in northern Indochina and in the Himalayas. Some of the species have become naturalized in parts of Asia, South America, Australia, and southern Europe. The stem or culm has a prominent groove, called a sulcus, that runs along the length of each segment (or internode). Because of this, it is one of the most easily identifiable genera of bamboo. Most of the species spread aggressively by underground rhizomes. Being pioneer plants, phyllostachys species

Vriesea is a genus of flowering plants in the botanical family Bromeliaceae, subfamily Tillandsioideae. The genus is named after the Dutch botanist and physician Willem Hendrik de Vriese (1806–1862). Its species are widespread over Mexico, Central America, South America and the West Indies. The genus includes many "tank bromeliads", which store water in a reservoir (a "tank") formed by their tightly overlapping leaf bases. Containing some of the largest bromeliad species, these tropical plants hold a wide variety of insect fauna. In the wild, some frog species go through their whole life

Cladophora is a genus of branching filamentous green algae in the class Ulvophyceae. They may be referred to as reticulated algae, branching algae, or blanket weed. The genus has a worldwide distribution, mainly found in marine or brackish waters; a few species are found in freshwater. It is harvested for use as a food and medicine.

Phyllodoce caerulea, known as blue heath in British English and purple mountain heather or blue mountainheath in American English, is an evergreen species of dwarf shrub that grows up to around 15 cm (6 in) tall, and bears clusters of 2–6 purple flowers. It is native to boreal regions around the Northern Hemisphere, but with large gaps in its distribution.

Crocus chrysanthus, the snow crocus or golden crocus, is a species of flowering plant in the family Iridaceae.

Acineta, abbreviated as Acn in horticultural trade, is a small genus belonging to the orchid family (Orchidaceae). The name is derived from the Greek word 'akinetos' (immobile), referring to the rigid labellum (lip). These epiphytic orchids occur in tropical mountainous forests from Mexico to western South America, at altitudes up to 2,000 m. They are sometimes lithophytic when found on steep embankments. The large, plicate leaves are parallel-nerved and resemble those of Peristeria and Lycaste, while the structure of the flowers bears a closer resemblance to Stanhopea. The species produce a

Lycaste, abbreviated as Lyc. in horticultural trade, is a genus of orchids that contains about 30 species with egg-shaped pseudobulbs and thin, plicate (pleated) leaves.

Dioon is a genus of cycads in the family Zamiaceae. It is native to Mexico and Central America. Their habitats include tropical forests, pine-oak forest, and dry hillsides, canyons and coastal dunes.

Pelecyphora, pincushion cactus or foxtail cactus is a genus of cacti, comprising 20 species. They originate from Mexico and the United States. Common species include the Missouri foxtail cactus P. missouriensis, widespread in grassland and forest west of the Mississippi, and the spinystar P. vivipara, distributed across the US and into Canada, first described by Nuttall in 1813.

The Zygnemataceae are a family of filamentous or unicellular, uniseriate (unbranched) green algae. The filaments are septated and reproduction is by conjugation; Spirogyra is commonly used in schools to demonstrate this kind of reproduction. The family is notable for its diversely shaped chloroplasts, such as stellate in Zygnema, helical in Spirogyra, and flat in Mougeotia. The Zygnemataceae are cosmopolitan, but though all generally occur in the same types of habitats, Mougeotia, Spirogyra, and Zygnema are by far the most common; in one study across North America, 95% of the Zygnemataceae

Taxus wallichiana, the Himalayan yew, is a species of yew, native to the Himalaya and parts of south-east Asia. The species has a variety of uses in traditional medicine. It is currently classified as endangered by the IUCN.

Syzygium polyanthum, with common names Indonesian bay leaf or daun salam, is a species of plant in the family Myrtaceae, native to Indonesia, Indochina and Malaysia. The leaves of the plant are traditionally used as a food flavouring, and have been shown to kill the spores of Bacillus cereus.

Eucalyptus melliodora, commonly known as yellow box, honey box or yellow ironbark, is a species of medium-sized to occasionally tall tree that is endemic to south-eastern, continental Australia. It has rough, flaky or fibrous bark on part or all of the trunk, smooth greyish to yellowish bark above. The adult leaves are lance-shaped to egg-shaped, the flower buds are arranged in groups of seven and the fruit is more or less hemispherical.

Dioon edule, the chestnut dioon, is a cycad native to Mexico, also known as palma de la virgen. Cycads are among the oldest seed plants and even pre-date the dinosaurs. It belongs to the Zamiaceae plant family within the order Cycadales. The genus name "Dioon" means "two-egged", referring to the two ovules (see photo below). Two subspecies are known, the nominate subspecies growing in a moister environment than the other: Dioon edule subsp. angustifolium Dioon edule subsp. edule

Dionysia is a genus containing 61 species of flowering plants in the family Primulaceae. They are small, cushion-forming alpines native to mountains of Iran, Iraq, Turkey, sauth Turkmenistan, northwestern Pakistan, Tajikistan, Afghanistan and parts of Oman. They are usually evergreen perennials with felted leaves, covered with bright yellow or pink, five-petalled flowers in spring. They are often difficult to cultivate if the correct conditions are not provided. Most species of Dionysia are cushion plants that grow in dry mountain environments, but some species are taller and prefer moist

Trachyandra is a genus of plant in the family Asphodelaceae, subfamily Asphodeloideae, first described as a genus in 1843. It is native to eastern and southern Africa, as well as to Yemen and Madagascar. Many of the species are endemic to South Africa. Species Trachyandra acocksii Oberm. - Cape Province in South Africa Trachyandra adamsonii (Compton) Oberm. - Cape Province, Namibia Trachyandra affinis Kunth - Cape Province, KwaZulu-Natal Trachyandra arenicola J.C.Manning & Goldblatt - Cape Province Trachyandra aridimontana J.C.Manning - Cape Province Trachyandra arvensis (Schinz) Oberm. -

Nothoscordum is a genus of New World plants in the onion tribe within the Amaryllis family. It is probably paraphyletic. The genus is native to North, Central and South America, though a few species have become naturalized in various parts of the Old World. Nothoscordum is a conserved name. It's synonymous with Pseudoscordum, which was described in 1837 by William Herbert as a reclassification of some Allium species. The term Nothoscordum comes from the fourth volume of Carl Sigismund Kunth's work Enum. Pl., published six years later in 1843.

Crocus cartwrightianus is a species of flowering plant in the family Iridaceae. It is native to mainland Greece, Euboea, Crete, Skyros and some islands of the Cyclades. It is a cormous perennial growing to 5 cm (2 in). The flowers, in shades of lilac or white with purple veins and prominent red stigmas, appear with the leaves in autumn and winter.

Clowesia is a genus of the family Orchidaceae. Species of this genus are epiphytic and contain many pseudobulbs with several internodes. The leaves of this plant are arranged alternatively in two vertical rows on opposite sides of the rachis. Clowesia has a simple gullet flower that allows for pollination by male euglossine bees. The flowers are often unisexual and contain a viscidium.

Paphinia, abbreviated in horticultural trade Pna, is a genus of orchids, composed of an estimated 16 species from Central America, northern South America and Trinidad. These species are medium-sized epiphytes with small ovoid pseudobulbs and 2 or more leaves. The generic name comes from the Greek Paphia, the name of Aphrodite of Cyprus. Most authorities consider the genus rare. Species accepted as of June 2014: Paphinia benzingii Dodson & Neudecker – Ecuador Paphinia cristata (Lindl.) Lindl. – Trinidad, Colombia, Venezuela, the Guianas, northern Brazil Paphinia dunstervillei Dodson &

Eucalyptus polyanthemos, commonly known as red box, is a species of small to medium-sized tree, that is native to eastern Australia but has been introduced into other countries. It has fibrous bark on the trunk and larger branches, smooth greyish to cream-coloured bark above, or smooth bark throughout. It has broadly egg-shaped to round juvenile leaves, lance-shaped, egg-shaped or almost round adult leaves, flower buds in groups of seven, white flowers and barrel-shaped to conical fruit.

Duabanga grandiflora (syn. D. sonneratioides) is a species of evergreen tropical tree. From its peculiar habit, it is a singular feature in its native forests. The trunk is erect, 40–80 feet high, undivided but sometimes forking from the base. The lower limbs spread drooping from the trunk; these are long, slender, sparingly branched, and the branches are four-angled, loosely covered with large spreading leaves. Since the leaves are arranged in two ranks, the slender branches resemble petioles, bearing pinnae of a compound leaf; the leaves are further often recurved, and are deep green above,

The common names soap plant, soaproot and amole refer to the genus Chlorogalum. They are native to western North America, with some species in Oregon but they are mostly found in California. Common names of the genus and several species derive from their use as soap. Soap plants are perennial plants, with more or less elongated bulbs, depending on the species. The bulbs can be white or brown, and in most species have a fibrous coat. The flowers are borne on a long central stem, and appear to have six separate petals (not all are petals in the technical sense). There are six stamens, which are

Allium schubertii, which has various common names including ornamental onion, flowering onion, tumbleweed onion and Persian onion, is a species of monocotyledonous flowering plant. It belongs to the onion and garlic genus, in the subfamily Allioideae of the family Amaryllidaceae. It occurs in the Levant and Libya.

Platycarya is a genus of flowering plants in the family Juglandaceae native to eastern Asia in China, Korea, and Japan. The genus was formerly treated as comprising a single species Platycarya strobilacea, though the second living species Platycarya longzhouensis is now recognized. A number of fossil species have been discovered across the Northern Hemisphere dating from the Early Eocene, although they became confined to eastern Asia during the Pleistocene ice ages. †Platycarya americana Hickey †Platycarya bognorensis (Chandler) Wing & Hickey †Platycarya castaneopsis (Lesquereux) Wing &