Plants named in 1824

A spruce is a tree of the genus Picea, a genus of some 37 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Northern Hemisphere. Picea is treated either in the subfamily Pinoideae, or the sole genus in its own subfamily Piceoideae. Spruces can be distinguished from other genera of the family Pinaceae by their needles (leaves), which are four-sided and attached singly to small persistent peg-like structures (pulvini) on the twigs. The needles are shed when 4–10 years old, leaving the twigs rough with the retained

The açaí palm ( ə-SY-ee; Portuguese: [asaˈi] , from Nheengatu asai), Euterpe oleracea, is a species of palm tree (Arecaceae) cultivated for its fruit (açaí berries, or simply açaí), hearts of palm (a vegetable), leaves, and trunk wood. Global demand for the fruit has expanded rapidly in the 21st century, and the tree is cultivated for that purpose primarily. The species is native to eastern Amazonia, especially in Brazil, mainly in swamps and floodplains. Açaí palms are tall, slender trees growing to more than 25 m (82 ft) tall, with pinnate leaves up to 3 m (9.8 ft) long. The fruit is small,

Lovage ( LUV-ij; Levisticum officinale) is a perennial plant, the sole species in the genus Levisticum in the family Apiaceae, subfamily Apioideae. It is native to Afghanistan and Iran. It has been long cultivated in Europe and the leaves are used as a herb, the roots as a vegetable, and the seeds as a spice, especially in southern European cuisine. Its flavour and smell are reminiscent both of celery and parsley, only more intense and spicier than either. The seeds can be used in the same way as fennel seeds.

Begoniaceae is a family of monoecious flowering plants with two genera and about 2040 species occurring in the subtropics and tropics of both the New World and Old World. All but one of the species are in the genus Begonia. The family is thought to have arose in Africa and then dispersed to Asia and the Americas. There has been multiple studies on pollination mechanisms within the family that suggest deceit pollination although overall there is not much known about the pollination of most species. There have been many recent discoveries of species in the genus Begonia, such as Begonia

Thuja plicata is a large evergreen coniferous tree in the family Cupressaceae, native to the Pacific Northwest of North America. Its common name is western redcedar. It is also less commonly called western red cedar, pacific red cedar, giant arborvitae, western arborvitae, just cedar, giant cedar, or shinglewood. It is not a true cedar of the genus Cedrus. T. plicata is the largest species in the genus Thuja, growing up to 70 metres (230 ft) tall and 7 m (23 ft) in diameter. It mostly grows in areas that experience a mild climate with plentiful rainfall, although it is sometimes present in

Ecballium is a genus of flowering plants in the family Cucurbitaceae containing a single species, Ecballium elaterium, also called the squirting cucumber. Its unusual common name derives from the ripe fruit squirting a stream of mucilaginous liquid containing its seeds as a means of seed dispersal, an example of rapid plant movement.

The Burseraceae are a moderate-sized family of 17-19 genera and about 540 species of woody flowering plants. The actual numbers given in taxonomic sources differ according to taxonomic revision at the time of writing. The Burseraceae are also known as the torchwood family, the frankincense and myrrh family, or simply the incense tree family. The family includes both trees and shrubs; its species are native to tropical regions of Africa, Asia, Australasia, and the Americas. Because of taxonomic revision, as the family size (in terms of genera and species) differs according to the time period

Cattleya is a genus of orchids from Costa Rica south to Argentina. The genus is abbreviated C in trade journals.

Vigna is a genus of plants in the legume family, Fabaceae, with a pantropical distribution. It includes some well-known cultivated species, including many types of beans. Some members of the genus were previously classified in Phaseolus. According to Hortus Third, Vigna differs from Phaseolus in biochemistry and pollen structure, and in details of the style and stipules. Vigna is also commonly confused with the genus Dolichos, but the two differ in stigma structure. Vigna are herbs or occasionally subshrubs. The leaves are pinnate, divided into 3 leaflets. The inflorescence is a raceme of

Antidesma bunius is a species of fruit tree in the family Phyllanthaceae. It is native to South Asia, Southeast Asia, Melanesia, and northern Australia. It is commonly known as bignay, after its native name in the Philippines, where the fruits are commonly used for making bignay wine and jams. It is also known more ambiguously as Chinese laurel, Queensland cherry, salamander tree, wild cherry, and currant tree.

Malva neglecta is a species of plant of the family Malvaceae, native to most of the Old World except sub-Saharan Africa. It is an annual growing to 0.6 m (2 ft). It is known as common mallow in the United States and also as buttonweed, cheeseplant, cheeseweed, dwarf mallow, and roundleaf mallow. This plant is often consumed as a food, with its leaves, stalks and seed all being considered edible. This is especially true of the seeds, which contain 21% protein and 15.2% fat.

Codiaeum variegatum, commonly known as croton or variegated croton amongst many other names, is a species of plant in the Euphorbiaceae family. Initially described by Carl Linnaeus in 1753, its native range is from Java east to Fiji, and from the Philippines south to Queensland, Australia. It is widely cultivated and has been introduced to many other countries.

Cyclanthaceae is a family of flowering plants.

Marattiaceae is the only family of extant (living) ferns in the order Marattiales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), Marattiales is the only order in the subclass Marattiidae. The family has six genera and about 110 species. Many are different in appearance from other ferns, having large fronds and fleshy rootstocks.

Impatiens parviflora (small balsam, or small-flowered touch-me-not) is a species of annual herbaceous plants in the family Balsaminaceae, native to some areas of Eurasia, naturalized elsewhere and found in damp shady places. Impatiens parviflora can grow in sandy, loamy, and clay soils and prefers moist soil. The name comes from the fact that ripe seed pods explode when touched to disperse seeds widely.

Coelogyne is a genus of about 600 species, of sympodial epiphytes from the family Orchidaceae, distributed across India, China, Indonesia and the Fiji islands, with the main centers in Borneo, Sumatra and the Himalayas. They can be found from tropical lowland forests to montane rainforests. A few species grow as terrestrials or even as lithophytes in open, humid habitats.

Alkanna is a genus of herbaceous plants in the family Boraginaceae. It includes 66 species native to southern and east-central Europe, western Asia, and North Africa.

Cytinaceae is a family of parasitic flowering plants. It comprises two genera, Cytinus and Bdallophytum, totalling ten species. These two genera were formerly placed in the family Rafflesiaceae, order Malpighiales. When they were separated into a new family, it was initially placed in Malpighiales, but it has since been recognised as belonging to order Malvales.

Alkanna tinctoria, the dyer's alkanet or simply alkanet, is a herbaceous flowering plant in the borage family Boraginaceae. Its roots are used to produce a red dye. The plant is also known as dyers' bugloss, orchanet, Spanish bugloss, or Languedoc bugloss. It is native to the Mediterranean region.

Pinus flexilis, the limber pine, is a species of pine tree in the family Pinaceae that occurs in the mountains of the Western United States, Mexico, and Canada. It is also called Rocky Mountain white pine. A limber pine in Eagle Cap Wilderness, Oregon, has been documented as over 2,000 years old, and another one was confirmed at 1,140 years old. Another candidate for the oldest limber pine was identified in 2006 near the Alta Ski Area in Utah; called "Twister", the tree was confirmed to be at least 1,700 years old and thought to be even older.

Malpighia emarginata is a tropical fruit-bearing shrub or small tree in the family Malpighiaceae native to the Neotropics. The fruit is notable for its exceptional richness in vitamin C and versatility in various food preparations.

Juniperus squamata, the flaky juniper, or Himalayan juniper is a species of coniferous shrub in the cypress family Cupressaceae, native to the Himalayas and China. It represents the provincial tree of Khyber Pakhtunkhwa (unofficial).

Tropaeolum , commonly known as nasturtium (; literally "nose-twister" or "nose-tweaker"), is a genus of roughly 80 species of annual and perennial herbaceous flowering plants. It was named by Carl Linnaeus in his book Species Plantarum and is the only genus in the family Tropaeolaceae. The nasturtiums received their common name because they produce an oil similar to that of watercress (Nasturtium officinale). The genus Tropaeolum, native to South and Central America, includes several very popular garden plants, the most common being T. majus, T. peregrinum and T. speciosum. One of the

Thymus praecox is a species of thyme. A common name is mother of thyme, but "creeping thyme" and "wild thyme" may be used where Thymus serpyllum, which also shares these names, is not found. It is native to central, southern, and western Europe.

Pterocarya, often called wingnuts in English, are trees in the walnut family Juglandaceae. They are native to Asia and parts of Europe. The botanic name is from Ancient Greek πτερόν (pteron) "wing" + κάρυον (karyon) "nut". The genus is of particular scientific interest as a classic relict lineage, with a modern distribution disjunct between East Asia and the Caucasus–West Asian region, while its fossil record shows it was once widespread across much of the Northern Hemisphere. Many fossils are known from the New World and the genus survived in the New world till the Pliocene. Most species of

Agapanthus africanus, commonly named the African lily, is a flowering plant from the genus Agapanthus found only on rocky sandstone slopes of the winter rainfall fynbos from the Cape Peninsula to Swellendam. It is also called the lily of the Nile in spite of only growing in South Africa.

Peucedanum ostruthium or Imperatoria ostruthium, masterwort, is a species of flowering plant in the family Apiaceae. It is native to the mountains of Central and Southern Europe, but has been widely introduced outside its native range.

Galeopsis bifida is an annual plant native to Europe and Asia but now found in Canada and the northeastern, midwestern parts of the United States. It has many common names such as bifid hemp-nettle, split-lip hemp-nettle, common hemp-nettle, and large-flowered hemp-nettle. The genus name means weasel-like, referring to the corolla of the flower. It is often confused with other species of Lamiaceae such as Mentha arvensis, Dracocephalum parviflorum and Stachys pilosa.

Cupressus torulosa, commonly known as the Himalayan cypress or Bhutan cypress, is a species of cypress tree native to the mountainous northern regions of the Indian subcontinent, in the western Himalayas.

Aeranthes, abbreviated Aerth in the horticultural trade, is an orchid genus with 47 species, mostly from shady, tropical humid forests in Zimbabwe, Madagascar and islands in the Western Indian Ocean. The name "aeranthes" means 'aerial flower', as their flowers appear to be suspended in the air.