Plants named in 1815

The Salicaceae are the willow family of flowering plants. The traditional family (Salicaceae sensu stricto) includes the willows and poplars. Genetic studies summarized by the Angiosperm Phylogeny Group (APG) have greatly expanded the circumscription of the family to contain 56 genera and about 1220 species, including the tropical Scyphostegiaceae and many of the former Flacourtiaceae. In the Cronquist system, the Salicaceae were assigned to their own order, Salicales, and contained three genera, Salix, Populus, and Chosenia (now a synonym of Salix). Recognized to be closely related to the

Cymbopogon, also known as lemongrass, barbed wire grass, silky heads, oily heads, Cochin grass, Malabar grass, citronella grass or fever grass, is a genus of Asian, African, Australian, and tropical island plants in the grass family. Some species (particularly Cymbopogon citratus) are commonly cultivated as culinary and medicinal herbs because of their scent, resembling that of lemons (Citrus limon). The name Cymbopogon derives from the Greek words kymbe (κύμβη, 'boat') and pogon (πώγων, 'beard') "which mean [that] in most species, the hairy spikelets project from boat-shaped spathes."

The Ulmaceae are a family of flowering plants that includes the elms (genus Ulmus), and the zelkovas (genus Zelkova). Members of the family are widely distributed throughout the north temperate zone, and have a scattered distribution elsewhere except for Australasia. The family was formerly sometimes treated to include the hackberries, (Celtis and allies), but an analysis by the Angiosperm Phylogeny Group suggests that these genera are better placed in the related family Cannabaceae. It generally is considered to include ca 7 genera and about 45 species. Some classifications also include the

Pinus brutia, commonly known as the Turkish pine and Calabrian pine, is a species of pine native to the eastern Mediterranean region. The bulk of its range is in Turkey, with smaller populations occurring in Bulgaria, Crete, Cyprus, Iraq, western Syria, Northern Iran, Crimea, the western Caucasus, and Azerbaijan; it is also naturalised as far east as Afghanistan and Pakistan. It is also known as East Mediterranean pine, Afghan pine, and Brutia pine. The name "Calabrian pine" comes from an introduced grove in the region of Calabria in southern Italy; historically this region was called

Quercus frainetto (synonyms Quercus conferta, Quercus farnetto), commonly known as the Hungarian oak, is a species of oak, native to southeastern Europe (parts of Italy, the Balkans, parts of Hungary, Romania) and Turkey. It is classified in Quercus sect. Quercus.

Lobularia maritima (syn. Alyssum maritimum) is a species of low-growing flowering plant in the family Brassicaceae. Its common name is sweet alyssum or sweet Alison, also commonly referred to as just alyssum (from the genus Alyssum in which it was formerly classified).

Echinodorus, commonly known as burhead, is a genus of plant in the family Alismataceae. It contains a single species, Echinodorus berteroi, which is native to the Americas. The name is derived from Ancient Greek echius 'rough husk', and doros 'leathern bottle', alluding to ovaries, which in some species are armed with persistent styles, forming prickly head of fruit.

Aurinia saxatilis (syns Alyssum saxatile, Alyssum saxatile var. compactum) is an ornamental plant native to Asia and Europe.

Rumex longifolius, commonly known as the dooryard dock or northern dock, is a perennial species of plant in the genus Rumex. A variety has been described: Rumex longifolius var. nanus

Pogostemon is a large genus from the family Lamiaceae, first described as a genus in 1815. It is native to warmer parts of Asia, Africa, and Australia. The best known member of this genus is patchouli, Pogostemon cablin, widely cultivated in Asia for its scented foliage, used for perfume, incense, insect repellent, herbal tea, etc. In 1997, it was proposed for the genus to be split into three subgenera— Allopogostemon Bhatti & Ingr., Dysophyllus (Blume) Bhatti & Ingr., and Pogostemon sensu Bhatti & Ingr. based on numerous morphological characteristics. However, the significant variability in

Myriophyllum alterniflorum, known as alternate water-milfoil or alternateflower watermilfoil, is a species of water-milfoil. It is native to Europe and Asia, has been introduced to North America and inhabits aquatic habitat, such as ponds and streams.

Rubus ellipticus, commonly known as ainselu, golden evergreen raspberry, golden Himalayan raspberry, or yellow Himalayan raspberry, is an Asian species of thorny fruiting shrub in the rose family. Its native range stretches from the Indian subcontinent (Nepal, India, Sri Lanka and Pakistan) to southern China and Indochina and the Philippines.

Neslia is a monotypic plant genus in the family Brassicaceae. The only species is Neslia paniculata (L.) Desv.

Lobularia is a genus of five species of flowering plants in the family Brassicaceae, closely related to (and formerly often included in) the genus Alyssum. The genus is native to Macaronesia, the Mediterranean region, Iran, and Saudi Arabia, and comprises annuals and perennials growing to 10–40 cm (4–16 in) tall, with hairy oblong-oval leaves and clusters of cross-shaped (cruciform), fragrant white flowers. The name Lobularia derives from the Greek for a small pod, referring to the fruits.

Adenocarpus is a genus of flowering plants in the family Fabaceae. It belongs to the subfamily Faboideae. The plants are broom-like shrubs with bright yellow flowers. The genus is native to the Mediterranean Basin and sub-Saharan Africa, but finds its highest diversity in Northwest Africa (Morocco, Algeria, and the Canary Islands) and the Iberian Peninsula.

The peony or paeony is any flowering plant in the genus Paeonia, the only genus in the family Paeoniaceae. Peonies are native to Asia, Europe, and Western North America. Scientists differ on the number of species that can be distinguished, ranging from 25 to 40, although the current consensus describes 33 known species. The relationships between the species need to be further clarified. Most are herbaceous perennial plants 0.25–1 metre (1–3 ft) tall, but some are woody shrubs 0.25–3.5 metres (1–11 ft) tall. They have compound, deeply lobed leaves and large, often fragrant flowers, in colors

Elatine hexandra, the six-stamened waterwort, is a species of flowering plant in the family Elatinaceae, which grows in shallow water around lakes and pools in Europe from Ireland to Romania. It is declining due to drainage and water pollution and is therefore protected in several countries.

The gastropod genus Aurinia is nowadays usually considered a junior synonym of Scaphella. Aurinia is a genus of flowering plants of the family Brassicaceae (Cruciferae), native to mountainous areas of central and southern Europe, Ukraine, southern European Russia, and Turkey. They are closely related to Alyssum, which they resemble. They can either be biennial or woody-based evergreen perennials. They produce panicles of yellow flowers in early summer.

Pulmonaria mollis is a perennial species of herb. It is very similar to P. angustifolia. The species is native to various parts of Europe and Asia.

Hydrocleys is a genus of aquatic plants in the Alismataceae, native to the Western Hemisphere, though one is naturalized elsewhere and sold as an ornamental for decorative ponds and artificial aquatic habitats. At present (May 2014), five species are recognized:

Cymbopogon schoenanthus, the camel grass, camel's hay, straw of Mecca, fever grass, geranium grass, or West Indian lemon grass, is a herbal plant of Southern Asia and Northern Africa, with fragrant foliage.

Braya is a genus of plants in the family Brassicaceae. It includes 22 species native to subarctic and subalpine Eurasia and North America.

Neslia is a monotypic plant genus in the family Brassicaceae. The only species is Neslia paniculata (L.) Desv.

Vicia orobus is a species of leguminous plant in the genus Vicia, known as wood bitter-vetch. It is found in Atlantic areas of Europe, especially in the rocky edges of seasonally-grazed fields. It grows up to 60 cm (24 in) tall, and has no tendrils at the ends of its pinnate leaves. Its flowers are white with purple veins, and are borne in groups of 6 or more.

Gomesa is a genus of flowering plants from the orchid family, Orchidaceae. It contains about 80–100 species, all native to South America. The genus is abbreviated as Gom.

Carex brevicollis is a species of sedge (genus Carex), found in Spain, France, Slovakia, Hungary, Romania, Bulgaria, Ukraine, the former Yugoslavia, Anatolia, the north Caucasus, and the Transcaucasus. It prefers to grow in calcareous mountain grasslands.

Adonis pyrenaica, common name Pyrenean pheasant's eye, is a species of plant in the family Ranunculaceae.

Prunus cocomilia is a species of plum commonly called Italian plum. It is native to Albania, Croatia, Greece, southern Italy (including Sicily), Montenegro, North Macedonia, Serbia, and western Turkey.

Fritillaria messanensis is a European species of flowering plant in the lily family Liliaceae, native to southeastern Europe: Italy (Sicily, Calabria), Greece (incl. Crete), Albania, former Yugoslavia. Subspecies Fritillaria messanensis subsp. gracilis (Ebel) Rix - Ionian Islands of Greece, Albania, Serbia, Croatia, Montenegro, Bosnia, North Macedonia, Kosovo Fritillaria messanensis subsp. messanensis - Greece, Sicily, Calabria Fritillaria messanensis subsp. neglecta (Parl.) Nyman - Croatia, North Macedonia Fritillaria messanensis subsp. sphaciotica (Gand.) Kamari & Phitos - Crete

Euphrasia nemorosa, the common eyebright, is a hemiparasitic, annual species of flowering plant in the family Orobanchaceae. It is native to Europe and has been introduced to North America and New Zealand. It is the commonest species of Euphrasia in Britain and Ireland.