Plants named in 1823

Cedrus libani, commonly known as cedar of Lebanon, Lebanon cedar, or Lebanese cedar (Arabic: أرز لبناني, romanized: ʾarz lubnāniyy), is a species of large evergreen conifer in the genus Cedrus, which belongs to the pine family and is native to the mountains of the Eastern Mediterranean basin. Known for its longevity, height, and durable wood, it has held profound significance for millennia. The tree features in ancient Mesopotamian and Israelite literature, notably in the Hebrew Bible, according to which the tree was used in the construction of the Jerusalem Temple by Solomon, who received

Cinnamomum verum (synonym Cinnamomum zeylanicum), also known as true cinnamon or Ceylon cinnamon is a small evergreen tree belonging to the family Lauraceae, native to Sri Lanka. The inner bark of the tree is historically regarded as the spice cinnamon, though this term was later generalized to include C. cassia as well.

Knautia arvensis, commonly known as field scabious, is a herbaceous perennial species of flowering plant in the honeysuckle family Caprifoliaceae.

The Potamogetonaceae, commonly referred to as the pondweed family, is an aquatic family of monocotyledonous flowering plants. The roughly 110 known species are divided over five genera. The largest genus in the family by far is Potamogeton, which contains about 100 species. The family has a subcosmopolitan distribution, and is considered to be one of the most important angiosperm groups in the aquatic environment because of its use as food and habitat for aquatic animals.

Viola riviniana, the common dog-violet, is a species of flowering plant in the family Violaceae, native to Eurasia and Africa. It is also called wood violet and dog violet. It inhabits woodland edges, grassland and shady hedge banks. It is found in all soils except those which are acid or very wet. Growing to 10 cm (3.9 in) tall and 50 cm (20 in) broad, this prostrate perennial has dark green, heart-shaped leaves and produces multiple violet coloured flowers in May and June. Viola riviniana was voted the county flower of Lincolnshire in 2002, following a poll by the wild plant conservation

The Xyridaceae are a family of flowering plants. This family has been recognized by many taxonomists and is known as the yellow-eyed grass family. The APG II system, of 2003 (unchanged from the APG system of 1998), also recognizes this family, and assigns it to the order Poales in the clade commelinids, in the monocots. This treatment in APG II represents a slight change from the APG system of 1998, which had recognized the family Abolbodaceae for some of the plants included here; that family was unplaced as to order, but was assigned to this same clade (although APG used the spelling

Fouquieria is a genus of 11 species of desert flowering plants, the sole genus in the family Fouquieriaceae. The genus is native to North America and includes the ocotillo (F. splendens) and the Boojum tree or cirio (F. columnaris). They have semi succulent stems with thinner spikes projecting from them, with leaves on the bases of the spikes. They are unrelated to cacti and do not look much like them; their stems are proportionately thinner than cactus stems and their leaves are larger.

Garcinia indica, a plant in the mangosteen family (Clusiaceae), commonly known as kokum, is a fruit-bearing tree that has culinary, pharmaceutical, and industrial uses. It grows primarily in India's Western Ghats: in the states of Maharashtra, Goa, Karnataka and Kerala. It is considered as an endemic species to the Western Ghats and forests in India. It grows in coastal and foothill moist forests up to 1,000 metres elevation with more than 2,500 mm of average annual rainfall. It favors lateritic alluvial soils with a depth of one or more metres and pH of 6.7. The species was first described

Aeschynanthus is a genus of about 150 species of evergreen subtropical and tropical plants in the family Gesneriaceae. They are usually trailing epiphytes with brightly colored flowers that are pollinated by sunbirds. The genus name comes from a contraction of aischuno (to be ashamed) and anthos (flower). The common name for some species is lipstick plant, which comes from the appearance of the developing buds emerging from the calyces. The genus contains a large variety of plants with differing features. Some have thick, waxy cuticles while others have much softer leaves. Species such as A.

Cryptogramma crispa, the parsley fern, is an Arctic–alpine species of fern. It produces separate sterile and fertile fronds, up to 30 cm (12 in) tall, and is a pioneer species on acidic screes.

Adenophora is a genus of flowering plants in the family Campanulaceae, the bellflowers. Plants of this genus are known commonly as ladybells. Most of the species in the genus are native to eastern Asia, with a few in Europe. Many are endemic to either China or Siberia.

Myrmecodia is a genus of epiphytic plants, present in Indochina, Malesia, Papuasia, and Queensland, Australia. It is one of five ant-plant genera in the family Rubiaceae, the others being Anthorrhiza, Hydnophytum, Myrmephytum, and Squamellaria. Myrmecophytes, or ant plants, live in a mutualistic association with a colony of ants. These plants possess structural adaptations that provide ants with food and/or shelter. Myrmecodia are also classified as epiphytes. The term epiphytic derives from the Greek epi- (meaning 'upon') and phyton (meaning 'plant'). Epiphytic plants are sometimes called

Euterpe is a genus of palm trees, containing eight species that are native to Central America and the Yucatan, the West Indies, and South America, from Belize and the Windward Islands southward to Brazil, Peru and Argentina. These palms grow mainly in swamps and floodplains. The genus is named after the muse Euterpe of Greek mythology. Euterpe are tall, slender palms growing to 15–30 metres (49–98 ft), with pinnate leaves up to 3 metres (9.8 ft) long, and a stem only about 100 millimetres (3.9 in) in diameter. Many of the palms that were once in the genus Euterpe have been reclassified into

Potamogeton obtusifolius, known as blunt-leaved pondweed, is an aquatic plant in the genus Potamogeton. It grows mainly in mesotrophic to eutrophic lakes, ponds and ditches, rarely in brackish water. It occurs primarily in Central Europe, the British Isles, Fennoscandia and eastern North America.

Agrimonia pilosa also known as hairy agrimony, is a flowering plant in the family Rosaceae. It is distributed primarily over the Korean Peninsula, Japan, China, Siberia, and Eastern Europe.

Ligularia sibirica is the type species for the genus Ligularia. It is a 0.3-1.3 m tall perennial herbaceous plant, native to fens and damp grassy meadows in Siberia, Central and Eastern Europe. Once fairly common, it has disappeared from many places in Europe, owing to drainage of wetlands and competition from other plants invading its natural habitats; when growing in shade plants do not flower or set seed very well and seed germination is greatly reduced. This species is sometimes grown in gardens for its large leaves and tall spike like arrangement of yellow daisy like flowers.

Botrychium simplex, the little grapefern, is a species of fern in the family Ophioglossaceae that is native to North America and Greenland. It is a perennial.

Arundinella is a widespread genus of plants in the grass family, common in many tropical and subtropical regions. Species formerly included see Alloteropsis Danthoniopsis Dilophotriche Jansenella Loudetia Trichopteryx

Acriopsis, commonly known as chandelier orchids or 合萼兰属 (he e lan shu) is a genus of flowering plants in the family Orchidaceaes. Orchids in this genus are epiphytic herbs with spherical or cylindrical pseudobulbs, creeping, branched rhizomes, thin white roots, two or three leaves and many small flowers. The flowers are non-resupinate with the lateral sepals joined along their edges and have spreading petals and a three-lobed labellum. The column has projections that extend hood-like beyond the anther. The genus was first formally described in 1825 by Carl Ludwig Blume who published the

Kopsia is a genus of plants in the family Apocynaceae. It was first described as a genus in 1823. Kopsia is native to China, Southeast Asia, Australia, and various islands of the western Pacific.

Hypericum tetrapterum (syn. H. quadrangulum) is a herbaceous perennial plant species in the flowering plant family Hypericaceae. Its common names include St. Peter's wort, Peterwort, square stemmed St. John's wort, and square stalked St. John's wort.

Dipterocarpus retusus, commonly known as hollong, is a large tree and perhaps the best known species in the genus Dipterocarpus. It is native to south-central China (western and southeastern Yunnan), Vietnam, the Philippines, Laos, Cambodia, Peninsular Malaysia, Indonesia (Sumatra, Java, and the Lesser Sunda Islands), Myanmar, and northeastern India. The tree, some 20–30 metres (70–100 ft) tall, is found in Cambodia in dense forests of the plains, common on hillsides and along rivers and in forests between 800 m (2,600 ft) and 1,500 m (5,000 ft) elevation. Hollong is the state tree of Assam

Cryptogramma is a genus of ferns known commonly as rockbrakes or parsley ferns. They are one of the three genera in the Cryptogrammoideae subfamily of the Pteridaceae. Cryptogramma ferns can be found in temperate regions on several continents worldwide. These ferns have two kinds of leaves which often look so different that at first glance they appear to belong to different plants. The fertile leaves have long, narrow, bumpy segments with undersides covered thickly in sporangia. The edges of the segments may curl back to cover the sporangia, forming a false indusium. The sterile leaves have

Oedipodium is the only genus of moss in the family Oedipodiaceae. It contains the single species Oedipodium griffithianum, the gouty-moss or Griffith's oedipodium moss. This species is distributed in cooler climates of Eurasia, as well as from Alaska, Washington state, British Columbia, Yukon, Greenland, Newfoundland, Tierra del Fuego and the Falkland Islands. The relationship of Oedipodium to other mosses has been much debated. Previously, the taxon has been included with the Funariales or the Splachnales. However, characteristics of the protonemata and asexual propagation, along with

Aconitum ferox (syn. A. virorum) is a member of the monkshood genus Aconitum of the Ranunculaceae. The common name by which it is most often known in English is Indian Aconite, while the Hindi names used by practitioners of Ayurveda include वत्सनाभ vatsanabha (= "root resembling the navel of a child") and महाविषा mahavisha (= "great poison"). A tuberous-rooted, herbaceous perennial reaching 1.0 metre tall by 0.5 metres wide and tolerant of many soil types, Aconitum ferox forms the principal source of the Indian poison known variously as bikh, bish, and nabee. It contains large quantities of

Rosa cymosa is a species of climbing rose native to China, where it grows from the east coast in Fujian to western Sichuan at up to 1300 m, in warm areas in scrub and gorges, and in bamboo plantations. It is sometimes called the elderflower rose as its flower formation resembles elderberry (Sambucus) flowers. Rosa cymosa has long smooth or hairy stems to 5 m, with a few, hooked thorns. Shoots and leaves are bright red when young. The leaflets are narrowly lanceolate, rounded at the base, and acuminate with a slender, curved point. Stipules are narrow and not attached to the stalk, or soon

Calandrinia is a genus of flowering plants known as purslanes and redmaids. It includes 37 species of annual and perennial herbs which bear colorful flowers in shades of red to purple and white. Species of this genus are native to the Americas, including western and southern South America, Central America, and western North America. Some species have been introduced to parts of Australia, New Zealand, southern Africa, Asia, and Europe. Over 60 species native to Australia and New Guinea that were formerly included in Calandrinia are now placed in a separate genus, Rumicastrum or Parakeelya. A

Schima is a genus of evergreen trees belonging to the tea family, Theaceae. The genus inhabits warm temperate to subtropical climates across southern and southeastern Asia, from the eastern Himalaya of Nepal and eastern India across Indochina, southern China, Taiwan, and the Ryukyu Islands. There are about 17 species, among which Schima superba is the most common.

Meliosma is a genus of flowering plants in the family Sabiaceae, native to tropical to warm temperate regions of southern and eastern Asia and the Americas. It is traditionally considered to contain about 100 species; some botanists take a much more conservative view accepting only 20-25 species as distinct. They are trees or shrubs, growing to 10–45 m tall. Fossil evidence shows the genus formerly had a much wider range in the Northern Hemisphere, including Europe and central Asia until the late Pliocene ice ages, and somewhat earlier in North America. At least 17 species of Meliosma are

Lasianthus is a genus of flowering plants in the family Rubiaceae. They are tropical subshrubs, shrubs, or rarely, small trees. They inhabit the understory of primary forests. Lasianthus has about 300 species. The type species for the genus is Lasianthus cyanocarpus. In 2012, a revision of Lasianthus in Malesia described 131 species. Another 30 or so species grow elsewhere in tropical Asia. Most of these are described in Flora of China or in A Revised Handbook to the Flora of Ceylon. 14 or 15 species are native to the Western Ghats of southwestern India, including the endemic Lasianthus