Plants named in 1834

The poinsettia (; Euphorbia pulcherrima) is a commercially important flowering plant species of the diverse spurge family Euphorbiaceae. Indigenous to Mexico and Central America, the poinsettia was first described by Europeans in 1834. It is particularly well known for its red and green foliage and is widely used in Christmas floral displays. It derives its common English name from Joel Roberts Poinsett, the first United States minister to Mexico, who is credited with introducing the plant to the US in the 1820s; however, there have been recent efforts to rename the flower to its Nahuatl

Chard ( ; Beta vulgaris subsp. vulgaris, Cicla Group and Flavescens Group) is a green leafy vegetable. It is also called silver beet, perpetual spinach, beet spinach, seakale beet, and leaf beet, but because it is the same species as beetroot, these other common names may overlap. In the cultivars of the Flavescens Group, or Swiss chard, the leaf stalks are large and often prepared separately from the leaf blade; the Cicla Group is the leafier spinach beet. The leaf blade can be green or reddish; the leaf stalks are usually white, yellow or red. Chard, like other green leafy vegetables, has

Dryopteris filix-mas, the male fern, is a common fern of the temperate Northern Hemisphere, native to much of Europe, Asia, and North America. It favours damp shaded areas in the understory of woodlands, but also shady places on hedge-banks, and rocks, and screes. Near the northern limit of its distribution it prefers sunny, well-drained sites. It is much less abundant in North America than in Europe.

Vachellia farnesiana, also known as Acacia farnesiana, and previously Mimosa farnesiana, commonly known as sweet acacia, huisache, casha tree, or needle bush, is a species of shrub or small tree in the legume family, Fabaceae. Its flowers are used in the perfume industry.

Amorphophallus is a large genus of some 200 tropical and subtropical tuberous herbaceous plants from the arum family (Araceae), native to Asia, Africa, Australia and various oceanic islands. The genus includes the Titan arum (A. titanum) of Indonesia, which has the largest inflorescence in the genus, and is known as the 'corpse flower' for the pungent odour it produces during its flowering period, which can take up to seven years of growth before it occurs. A few species are edible as "famine foods" after careful preparation to remove irritating chemicals.

Chaenomeles japonica, called the Japanese quince, Maule's quince, or "Japonica", is a species of flowering quince that is native to Japan. It is a thorny deciduous shrub that is commonly cultivated. It is shorter than another commonly cultivated species C. speciosa, growing to only about 1 m in height. It is best known for its colorful spring flowers, which are red, white, pink or multicoloured.

The Surianaceae are a family of plants in the order Fabales with five genera and eight known species. It has an unusual distribution: the genus Recchia is native to Mexico, and the sole member of Suriana, S. maritima, is a coastal plant with a pantropical distribution; and the remaining three genera are endemic to Australia. They range in form from small shrubs to tall trees.

The Cleomaceae are a small family of flowering plants in the order Brassicales, comprising about 220 species in two genera, Cleome and Cleomella. These genera were previously included in the family Capparaceae, but were raised to a distinct family when DNA evidence suggested the genera included in it are more closely related to the Brassicaceae than they are to the Capparaceae. The APG II system allows for Cleomaceae to be included in Brassicaceae. Cleomaceae includes C3, C3–C4, and C4 photosynthesis species.

The Zamiaceae are a family of cycads that are superficially palm or fern-like. They are divided into two subfamilies with eight genera and about 150 species in the tropical and subtropical regions of Africa, Australia and North and South America. The Zamiaceae, sometimes known as zamiads, are perennial, evergreen, and dioecious. They have subterranean to tall and erect, usually unbranched, cylindrical stems, and stems clad with persistent leaf bases (in Australian genera). Their leaves are simply pinnate, spirally arranged, and interspersed with cataphylls. The leaflets are sometimes

Terminalia arjuna is a tree of the genus Terminalia. It is commonly known as arjuna or arjun tree in English. It is used as a traditional medicinal plant.

Garryaceae is a small family of plants known commonly as the silktassels. It contains two genera: Garrya Douglas ex Lindl., 1834. About 16–18 species. Aucuba Thunb., 1783. About 3–10 species. Aucuba was included in the family Cornaceae or Aucubaceae in some classification systems. Together with Eucommia ulmoides the Garryaceae are currently placed by the Angiosperm Phylogeny Group in an own order, the Garryales.

Vachellia is a genus of flowering plants in the legume family, Fabaceae, commonly known as thorn trees or acacias. It belongs to the subfamily Mimosoideae. Its species were considered members of genus Acacia until 2009. Vachellia can be distinguished from other acacias by its capitate inflorescences and spinescent stipules. Before discovery of the New World, Europeans in the Mediterranean region were familiar with several species of Vachellia, which they knew as sources of medicine, and had names for them that they inherited from the Greeks and Romans. The wide-ranging genus occurs in a

Cassiope is a genus of 18 small shrubby species in the family Ericaceae. It is the sole genus in the subfamily Cassiopoideae. They are native to the Arctic and north temperate montane regions. The genus is named after Cassiopeia of Greek mythology.

Encephalartos is a genus of cycad native to Africa. Several species of Encephalartos are commonly referred to as bread trees, bread palms or kaffir bread, since a bread-like starchy food can be prepared from the centre of the stem. The genus name is derived from Ancient Greek ἐγκέφαλος (encéphalos), meaning "head", and ἄρτος (ártos), meaning "bread", referring to the use of the pith to make food. They are, in evolutionary terms, some of the most primitive living gymnosperms. All the species are endangered, some critically, due to their exploitation by collectors and traditional medicine

The Francoaceae are a small family of flowering plants in the order Geraniales, including the genera Francoa, commonly known as bridal wreaths. The Francoaceae are recognized as a family under various classification schemes. Under the 2009 APG III system the Francoaceae were included within the Melianthaceae. In the 2016 APG IV system the Francoaceae are again recognized as a family, with Melianthaceae included in the circumscription of Francoaceae.

Pterocarya fraxinifolia is a species of tree in the Juglandaceae family. It is commonly known as the Caucasian wingnut or Caucasian walnut. It is native to the Caucasian region Armenia, Azerbaijan, Georgia, Iran, Russia, Ukraine and Turkey. It was introduced to France in 1784, and to Great Britain after 1800.

Dichrostachys cinerea, known as sicklebush, bell mimosa, Chinese lantern tree or Kalahari Christmas tree (South Africa), is a legume of the genus Dichrostachys in the family Fabaceae. Other common names include omubambanjobe (Tooro Uganda), acacia Saint Domingue (French), el marabú (Cuba), " Mpangara" (Shona), Kalahari-Weihnachtsbaum (German of former South West Africa), kéké or mimosa clochette (Réunion), burli (Fula), sinté (Soninke).

Thelypteris palustris, the marsh fern, or eastern marsh fern, is a species of fern native to eastern North America and across Eurasia. It prefers to grow in swamps, bogs, wet fields or thickets, fresh tidal and nontidal marshes, or wooded streambanks. The species epithet palustris is Latin for "of the marsh" and indicates its common habitat. It is the only known host plant for Fagitana littera, the marsh fern moth.

Agave attenuata, commonly called the foxtail or lion's tail agave or the swan's neck agave, is a species of flowering plant in the family Asparagaceae (the asparaguses, agaves and yuccas). Sometimes called the soft-leaf or soft-leaved agave, the aforementioned animal-related names are a nod to the appearance of the plant's inflorescence, which—after years, generally—rises slightly before gravity brings it back down, giving the bloom a curved, "swan"-like or "foxtail" look. The species' specific manner of flowering is unique in the genus Agave as most other species produce a towering, vertical

Aspidistra elatior, the cast-iron-plant or bar-room plant, also known in Japanese as haran or baran (葉蘭) is a species of flowering plant in the family Asparagaceae, native to Japan and Taiwan. Tolerant of neglect, it is widely cultivated as a houseplant, but can also be grown outside in shade where temperatures remain above −15 °C (5 °F). It is used as training material for the seika form of ikebana.

Pieris japonica, the Japanese andromeda or Japanese pieris, is a species of flowering plant in the heath family Ericaceae. It is native to eastern China, Taiwan, and Japan, where it grows in mountain thickets. This medium-sized evergreen shrub or tree is widely cultivated in gardens.

Pieris ( or ) is a genus of seven species of shrubs in the flowering plant family Ericaceae, native to mountain regions of eastern and southern Asia, eastern North America and Cuba. Known commonly in North America as andromedas or fetterbushes, they are broad-leaved evergreen shrubs growing to 1–6 metres (3–20 ft) tall and 0.9–3.0 m (3–10 ft) wide. The leaves are spirally arranged, often appearing to be in whorls at the end of each shoot with bare stretches of shoot below; they are lanceolate-ovate, 2–10 cm (1–4 in) long and 1.0–3.5 cm (1⁄2–1+1⁄2 in) broad, leathery textured, and with an

Nephrolepis exaltata, known as the sword fern or Boston fern, is a species of fern in the family Nephrolepidaceae. It is native to the Americas. This evergreen plant can reach as high as 40–90 centimetres (16–35 in), and in extreme cases up to 1.5 metres (4 ft 11 in). It is also known as the Boston sword fern, wild Boston fern, Boston blue bell fern, tuber ladder fern, or fishbone fern.

Nephrolepis is a genus of about 30 species of ferns. It is the only genus in the family Nephrolepidaceae, placed in the suborder Aspleniineae (eupolypods I) of the order Polypodiales in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). (It is placed in the Dryopteridaceae in some other classifications.) Species in this genus include plants commonly referred to as Boston ferns. The fronds are long and narrow, and once-pinnate, in the case of one Bornean species reaching thirty feet (nine meters) in length.

Emilia sonchifolia, also known as lilac tasselflower or cupid's shaving brush, is a tropical flowering species of tasselflower in the sunflower family. It is a branching, annual herb up to 40 cm (15+1⁄2 in) tall. The leaves are lyrate-pinnatilobed, up to 10 cm (4 in) long, sometimes becoming purplish as they get old. One plant can produce several pink or purplish flower heads. It is widespread in tropical regions around the world. Though hepatotoxic, the leaves and young shoots can be eaten as vegetables.

Neuwiedia is a genus of primitive terrestrial orchids (family Orchidaceae), comprising 9 species native to China, Southeast Asia and certain Pacific Islands. The two genera in the subfamily Apostasioideae, Apostasia and Neuwiedia, differ from most other orchids in having three stamens. Recent studies suggest that the fifteen or so species in these two genera, although exhibiting "primitive" features, are "sister" genera rather than ancestors of other orchid families. Like the genus Apostasia of the same subfamily, this genus is noted for having 3 fertile stamens instead of only two as in the

Millettia is a genus of flowering plants in the family Fabaceae. It consists of about 169 species of shrubs, lianas or trees, which are native to tropical and subtropical regions of sub-Saharan Africa, the Indian subcontinent, Indochina, southern China, Malesia, and New Guinea. Typical habitats include tropical rain forest and seasonally-dry lowland and upland forest and forest margins, woodland, thicket, wooded grassland, and secondary vegetation.

Hippobroma longiflora, also called Star of Bethlehem or madamfate, is a flowering plant in the family Campanulaceae. It is the only species in the genus Hippobroma. It is endemic to Jamaica in the West Indies, but has become naturalised across the American tropics, Madagascar, southern and southeastern Asia, and Oceania. It is a perennial herbaceous plant growing to 35 cm tall, with leaves 7–16 cm long and 1–3.7 cm broad, with a coarsely toothed margin. The five-petaled white flower has a slender floral tube only 2 or 3 mm (0.1 or 0.1 in) wide by 7 to 8 cm (2.8 to 3.1 in) in length. The plant

Coffea stenophylla, also known as highland coffee or Sierra Leone coffee, is a species of Coffea originating in West Africa. As of 2020, it is not commercially cultivated, because its low yield and small berries make it inferior to the two economically dominant species Coffea arabica and Coffea canephora (robusta). Research is being done to evaluate the sensory and agronomic benefits of commercially cultivating it as a method of expanding the genetic diversification of global coffee stock and increasing resilience to both climate change and crop disease pressures.

Anamirta cocculus (Marathi: काकमारी) is a Southeast Asian and Indian climbing plant. It is the source of picrotoxin, a poisonous compound with stimulant properties. The plant is large-stemmed (up to 10 cm in diameter); the bark is "corky gray" with white wood. The "small, yellowish-white, sweet-scented" flowers vary between 6 and 10 millimeters across; the fruit produced is a drupe, "about 1 cm in diameter when dry".