Plants named in 1819

Ficus elastica, the rubber fig, rubber bush, rubber tree, rubber plant, or Indian rubber bush, Indian rubber tree, or rambung is a species of flowering plant in the family Moraceae, native to eastern parts of South and Southeast Asia. It has become naturalized in Sri Lanka, the West Indies, and the US state of Florida. Its common names reflect its historical use as a source of rubber within its native range, but it is not used in the modern commercial-scale production of natural rubber.

Leontopodium is a genus of plants in the family Asteraceae. The genus is native to Europe and Asia. The fuzzy and somewhat stocky "petals" (technically, bracts) could be thought of as somewhat resembling lions' paws—hence the genus name combining Greek léōn ('lion') and pódion ('foot'). The genus includes the edelweiss (L. nivale), a well-known plant from the mountains of Europe. The term edelweiss can, more rarely, refer to other members of the genus.

Adenium is a genus of flowering plants in the family Apocynaceae first described as a genus in 1819. It is native to Africa and the Arabian Peninsula.

The Calycanthaceae (sweetshrubs or spicebushes) are a small family of flowering plants in the order Laurales. The family contains three genera and only 10 known species , restricted to warm temperate and tropical regions: They are aromatic, deciduous shrubs growing to 2–4 m tall, except for Idiospermum, which is a large evergreen tree. The flowers are white to red, with spirally arranged tepals. DNA-based phylogenies indicate the Northern Hemisphere Calycanthus and Chimonanthus diverged from each other in the mid-Miocene, while the Australian Idiospermum had already diverged by the Upper

Tecoma stans is a species of flowering perennial shrub in the trumpet vine family, Bignoniaceae, that is native to the Americas. Common names include yellow trumpetbush, yellow bells, yellow elder, ginger Thomas. Tecoma stans is the official flower of the United States Virgin Islands and the floral emblem of The Bahamas.

Arrhenatherum elatius is a species of flowering plant in the grass family Poaceae, commonly known as false oat-grass, and also bulbous oat grass (subsp. bulbosum), tall oat-grass, tall meadow oat, onion couch and tuber oat-grass. It is native throughout Europe (including Iceland), and also western and southwestern Asia (south to Jordan and Iran), and northwestern Africa (Morocco to Tunisia). This tufted grass is sometimes used as an ornamental grass and is sometimes marketed as "cat grass". Outside of its native range it can be found elsewhere as an introduced species. It is found especially

Adenium obesum, more commonly known as a desert rose, is a poisonous species of flowering plant belonging to the tribe Nerieae of the subfamily Apocynoideae of the dogbane family, Apocynaceae. It is native to the Sahel regions south of the Sahara (from Mauritania and Senegal to Sudan), tropical and subtropical eastern and southern Africa, as well as the Arabian Peninsula. Other names for the flower include Sabi star, kudu, mock azalea, and impala lily. Adenium obesum is a popular houseplant and bonsai in temperate regions.

Veronica polita, the grey field-speedwell is a species of flowering plant in the Plantaginaceae (Plantain) family. It is native to Europe, southwestern Asia, North Africa, the Arabian Peninsula and a few nearby countries, and has been introduced to many countries worldwide particularly as a weed of cultivation.

Spergularia is a genus in the family Caryophyllaceae, containing salt-tolerant plants known as sandspurrys (or sandspurries) and sea-spurreys. There are about 60 species.

Spergularia rubra, the red sandspurry or red sand-spurrey, is a plant species in the family Caryophyllaceae. It is native to Europe, Asia and North Africa, and it is present on other continents, including North and South America and Australia, as an introduced species and in many areas a common weed. It grows in a wide variety of habitat types. It is an annual or perennial herb producing a slender, glandular stem up to about 25 centimeters (9.8 in) long. It is lined with slightly fleshy linear or threadlike leaves each under 2 centimeters long. The leaves may be tipped with hard points or

Eremurus is a genus of deciduous perennial flowers in the family Asphodelaceae. They are also known as the foxtail lilies or desert candles. They are native to eastern Europe (Russia and Ukraine), and temperate Asia from Turkey to China, with many species in Central Asia. The inflorescence consists of a tall floral spike whose individual flowers extend their anthers around the stem axis as in the bottle brushes. Depending on the species, the spike consists of many densely-arranged, small flowers in shades of orange, yellow, white, pale pink or red-orange. The grey-green, straplike leaves grow

Lycoris radiata, known as the red spider lily, red magic lily, corpse flower, or equinox flower, is a plant in the amaryllis family, Amaryllidaceae, subfamily Amaryllidoideae. It is originally from China, Japan, Korea and Nepal and spread from there to the United States and elsewhere. It is considered naturalized in Seychelles and in the Ryukyu Islands. It flowers in the late summer or autumn, often in response to heavy rainfall. The common name hurricane lily refers to this characteristic, as do other common names, such as resurrection lily; these may be used for the genus as a whole.

Tabernaemontana divaricata, commonly called pinwheel flower, crape jasmine, Ceylon jasmine, East India rosebay, and Nero's crown, is an evergreen shrub or small tree native to South Asia, Southeast Asia and China. In zones where it is not hardy it is grown as a house/glasshouse plant for its attractive flowers and foliage. The stem exudes a milky latex when broken, whence comes the name milk flower.

Lycoris is a genus of about 20 species of flowering plants in the family Amaryllidaceae, subfamily Amaryllidoideae. They are native to eastern and southern Asia in China, Japan, southern Korea, northern Vietnam, northern Laos, northern Thailand, northern Myanmar, Nepal, northern Pakistan, Afghanistan, and eastern Iran. In English they are also called hurricane lilies or cluster amaryllis. The genus shares the English name spider lily with two other related genera.

The Heliantheae (sometimes called the sunflower tribe) are the third-largest tribe in the sunflower family (Asteraceae). With some 190 genera and nearly 2500 recognized species, only the tribes Senecioneae and Astereae are larger. The name is derived from the genus Helianthus, which is Greek for sun flower. Most genera and species are found in North America (particularly in Mexico) and South America. A few genera are pantropical. Most Heliantheae are herbs or shrubs, but some grow to the size of small trees. Leaves are usually hairy and arranged in opposite pairs. The anthers are usually

Myosotis stricta is a plant species of the genus Myosotis. Common names include strict forget-me-not and blue scorpion grass.

Halocnemum is a genus of halophytic shrubs in the family Amaranthaceae. The plants are fleshy and apparently articulated with characteristic globular or short-cylindrical lateral branches, and reduced leaves and flowers. There are three or two species, occurring from Southern Europe and North Africa to Asia.

Astereae is a tribe of plants in the family Asteraceae that includes annuals, biennials, perennials, subshrubs, shrubs, and trees. They are found primarily in temperate regions of the world. Plants within the tribe are present nearly worldwide divided into over 250 genera and more than 3,100 species, making it the second-largest tribe in the family behind Senecioneae. The taxonomy of the tribe Astereae has been dramatically changed after both morphologic and molecular evidence suggested that large genera such as Aster, as well as many others, needed to be separated into several genera or

Careya arborea is a species of tree in the Lecythidaceae family, native to the Indian subcontinent, Afghanistan, and Indochina. Its common English names include wild guava, Ceylon oak, patana oak. Careya arborea is a deciduous tree that grows up to 15 metres (49 ft) high. Its leaves turn red in the cold season. Flowers are yellow or white in colour that become large green berries. The tree grows throughout India in forests and grasslands.

Campanula portenschlagiana, the wall bellflower, is a species of flowering plant in the family Campanulaceae, native to the Dalmatian Mountains in Croatia. It is a vigorous, low-growing, mound-forming evergreen perennial with deep purple flowers in summer. Other common names include Dalmatian bellflower, Adria bellflower and Campanula muralis.

Anthemideae is a tribe of flowering plants in the subfamily Asteroideae, which is part of the family Asteraceae. They are distributed worldwide, with concentrations in central Asia, the Mediterranean Basin, and southern Africa. Most species of plant known as chamomile belong to genera of this tribe. As of 2006 there were about 1800 species classified in 111 genera. In 2007 the tribe was divided into 14 subtribes, including Glebionidinae, the source of hybrid garden marguerites.

Senecioneae is the largest tribe of the Asteraceae, or the sunflower family, comprising over 150 genera and over 3,500 species. Almost one-third of the species in this tribe are placed in the genus Senecio. Its members exhibit probably the widest possible range of form to be found in the entire plant kingdom, and include annuals, minute creeping alpines, herbaceous and evergreen perennials, shrubs, climbers, succulents, trees, and semi-aquatic plants. Plants in this tribe are responsible for more livestock poisonings than all other plants combined. Its members usually contain liver and kidney

Phagnalon is a genus of flowering plants in the family Asteraceae, native to southern Europe, North Africa and northeastern Tropical Africa, and Western Asia to the Arabian Peninsula and Tibet.

Pereskia grandifolia (rose cactus; syn. Rhodocactus grandifolius) is a species of cactus native to eastern and southern Brazil. Like all species in the genus Pereskia and unlike most cacti, it has persistent leaves. It was first described in 1819. It is grown as an ornamental plant and has naturalized outside its native range.

Halocnemum strobilaceum is a species of flowering plant in the subfamily Salicornioideae of the family Amaranthaceae. It is native to coastal areas of the Mediterranean Sea and the Red Sea and parts of the Middle East and central Asia, where it grows in coastal and inland salt marshes, alkali flats, and other habitats with saline soils.

Erodium botrys is a species of flowering plant in the geranium family known by the common names longbeak stork's bill, Mediterranean stork's-bill and broadleaf filaree.

Chimonanthus is a genus of flowering plants in the family Calycanthaceae, native to China, but is also cultivated elsewhere in Asia, including Iran. The genus includes three to six species depending on taxonomic interpretation; six are accepted by the Flora of China. The name means winter flower in Greek.

The genus Arceuthobium, commonly called dwarf mistletoes, is a genus of 42 species of parasitic plants that parasitize members of Pinaceae and Cupressaceae in North America, Central America, Asia, Europe, and Africa. Of the 42 species that have been recognized, 39 and 21 of these are endemic to North America and the United States, respectively. They all have very reduced shoots and leaves (mostly reduced to scales) with the bulk of the plant living under the host's bark. Recently the number of species within the genus has been reduced to 26 as a result of more detailed genetic analysis.

Osmorhiza is a genus of perennial herbs, known generally as sweet cicely, sweetcicely, or sweetroot. Most species are native to North America, but some grow in South America and Asia. Some species are used for medicinal purposes, but have dangerous lookalikes. The fruits of this plant have barbs on the end allowing them to stick to clothing, fur, or feathers. American Indians used the roots of sweet cicely as a panacea. It was used as a tonic for upset stomach and to ease childbirth. The root was poulticed on boils and wounds, and a root tea was used as an eye wash. Folk medicine list uses of

Opuntia fragilis, known by the common names brittle pricklypear and little prickly pear, is a prickly pear cactus native to much of western North America.