Plants named in 1891

Butea monosperma is a species of Butea native to tropical and sub-tropical parts of South Asia and Southeast Asia. It is also known as flame of the forest, Bengal kino, dhak, palash, and bastard teak. Revered as sacred by Hindus, it is prized for producing an abundance of vivid blooms, and it is also cultivated elsewhere as an ornamental. The plant grows across Bangladesh, India, Nepal, Pakistan, Sri Lanka, Myanmar, Thailand, Laos, Cambodia, Vietnam, Malaysia, and western Indonesia.

Bacopa monnieri, also known as water hyssop, brahmi, thyme-leafed gratiola, herb of grace, and Indian pennywort, is a perennial, creeping herb native to wetland areas globally. It is used in Ayurveda. In 2019, the US Food and Drug Administration (FDA) warned manufacturers of dietary supplement products containing Bacopa monnieri against making illegal and unproven claims that the herb can treat various diseases. There is inconclusive evidence of it improving cognitive performance and memory, and its safety and effectiveness remain uncertain.

Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is a species of allergenic flowering plant. It has numerous subtaxons and forms both vines and shrubs. Despite its common name, it is not a true ivy, but rather a member of the cashew and sumac family, Anacardiaceae. It is different from western poison ivy, Toxicodendron rydbergii, and resembles a number of species. The species is found in North America. Although commonly eaten by animals, with birds consuming the seeds, T. radicans is considered a noxious weed. As a poison ivy, it causes urushiol-induced contact

Nymphoides peltata, the fringed water-lily is perennial, rooted aquatic plant with floating leaves of the family Menyanthaceae. Synonyms include Menyanthes nymphoides L., Villarsia nymphoides, Limnanthemum peltatum S.G.Gmel., Nymphoides nymphoides (L.) Britton, and other vernacular names include yellow floating heart, floating heart, water fringe, and entire marshwort. It is native throughout most of Europe (excluding Ireland and Scandinavia) and temperate Asia, and locally in Algeria in northwest Africa. It has been spread by human cultivation outside its native range and is now naturalised

Tetragonia tetragonioides, commonly called New Zealand spinach, warrigal greens and other local names, is a flowering plant in the fig-marigold family (Aizoaceae). It is often cultivated as a leafy vegetable. It is a widespread species, native to eastern Asia, Australia, and New Zealand. It has been introduced and is an invasive species in many parts of Africa, Europe, North America, and South America. Its natural habitat is sandy shorelines and bluffs, often in disturbed areas. It is a halophyte and grows well in saline ground.

Crassula aquatica is a succulent plant known by the common names water pygmyweed, common pygmyweed and just pigmyweed. It is an annual plant of salt marshes, vernal pools, wetlands, and other fresh to brackish water bodies. It is at least partially aquatic, living in areas which are submersed much of the time. It also lives along muddy banks and in tidally-active areas of estuaries.

Yareta or llareta (in Spanish), known scientifically as Azorella compacta, (historically Azorella yareta) is a velvety, chartreuse cushion plant in the family Apiaceae which is native to South America. It grows in the Puna grasslands of the Andes in Peru, Bolivia, northern Chile and western Argentina at altitudes between 3,200 and 5,250 metres (10,500 and 17,220 ft). The name comes from yarita in the Quechua language.

Tacca leontopetaloides is a species of flowering plant in the yam family Dioscoreaceae. It is native to the islands of Southeast Asia. Austronesian peoples introduced it as a canoe plant throughout the Indo-Pacific tropics during prehistoric times. It has become naturalized to tropical Africa, South Asia, northern Australia, and Oceania. Common names include Polynesian arrowroot, Fiji arrowroot, East Indies arrowroot, pia, and seashore bat lily.

Jasminum polyanthum (Chinese: 多花素馨; pinyin: Duōhuāsùxīn), the many-flowered jasmine, pink jasmine, or white jasmine, is a species of flowering plant in the olive family Oleaceae, native to China and Myanmar. A strong evergreen twining climber, it is especially noted for its abundant, highly fragrant pink to white flowers.

Clinopodium nepeta (synonym: Calamintha nepeta), known as lesser calamint, is a perennial herb of the mint family known for having fragrant, grey-green, oregano-like leaves with a pennyroyal smell. It is also called niepita, and mentuccia romana. This plant commonly grows across the Mediterranean, North Africa and parts of Central Asia and has traditionally been used as a folk medicine and culinary herb. A recent study also found cultivars of lesser catmint that had the same compounds in catnip that cause the euphoric effect in cats, known as nepetalactone.

Bothriochloa is a common and widespread genus of plants in the grass family native to many countries on all inhabited continents and many islands. They are often called beardgrass, bluegrass or bluestem. Some species are invasive in areas where they have been introduced. The etymology of the genus name Bothriochloa derives from the two ancient Greek words βοθρίον (bothríon), meaning "small pit or trench", and χλόη or χλόα (khlóa), meaning "new green shoot or blade of grass". Recently, some specimens of Bothriochloa were collected from Gooty Fort Hill, Andhra Pradesh, India and identified as

Hammarbya paludosa (or Malaxis paludosa) is a small orchid commonly known as bog orchid, bog adder's-mouth or bog adder's-mouth orchid. It grows in bogs in temperate and subarctic regions of the Northern Hemisphere.

Agastache foeniculum (syn. Agastache anethiodora (Nutt.) Britton), commonly called anise hyssop, blue giant hyssop, Fragrant giant hyssop, or the lavender giant hyssop, is a species of perennial plant in the mint family. The plant is native to much of northern North America. It is tolerant of deer and drought, and is visited by many pollinators.

Pandanus odorifer is an aromatic monocot species of plant in the family Pandanaceae, native to Polynesia, Australia, South Asia (Andaman Islands), and the Philippines, and is also found wild in southern India and Burma. It is commonly known as fragrant screw-pine.

Intsia bijuga, commonly known as Borneo teak, ipil, merbau, Johnstone River teak, and kwila, amongst many other names, is a species of tree in the flowering plant family Fabaceae, native to coastal areas from east Africa, through India and Southeast Asia to Australia and the western Pacific. It has significant importance to indigenous cultures in many parts of its range, but is also threatened by illegal logging due to its high quality timber. It is most commonly found in tropical coastal forests.

Toxicodendron succedaneum, the wax tree, Japanese Hazenoki tree (Sumac or wax tree), sơn in Vietnamese or charão in Portuguese, is a flowering plant species in the genus Toxicodendron found in Asia, although it has been planted elsewhere, most notably Australia and New Zealand. It is a large shrub or tree, up to 8 m tall, somewhat similar to a sumac tree. Because of its beautiful autumn foliage, it has been planted outside Asia as an ornamental plant, often by gardeners who were apparently unaware of the dangers of allergic reactions. It is now officially classified as a noxious weed in

Acokanthera schimperi, arrow poison tree, belonging to the family Apocynaceae, is a small tree native to eastern and central Africa as well as to Yemen.

Nageia nagi, or the Asian bayberry, is a plant species in the family Podocarpaceae named by Carl Peter Thunberg. Nageia nagi is native to China, Japan, and Taiwan. It was formerly called Podocarpus nagi.

Keteleeria davidiana (zh: 铁坚油杉) is a coniferous evergreen tree native to Taiwan and southeast China, in the provinces of Gansu, Guangxi, Guizhou, Hubei, Hunan, Shaanxi, Sichuan, and Yunnan. It also occurs in the very northern part of Vietnam. The tree is restricted to hills, mountains, and valleys at elevations of 200–1500 m. Generally, it grows in regions with a more continental climate than the other two Keteleeria species. The tree reaches 40–50 m in height, developing an irregular oblate crown with large branches. The branchlets have a dense covering of stiff hairs. The bark is dull brown

Eulophia, commonly known as corduroy orchids, is a genus of about two hundred species of flowering plants in the orchid family, Orchidaceae. Most Eulophia orchids are terrestrial but some are deciduous while others are evergreen. They either have an underground rhizome or pseudobulbs on the surface and those species with leaves have them on the end of a fleshy stem. The flowers are arranged on a thin flowering spike, the flowers having sepals which are larger than the petals. The genus is widely distributed but most species are found in Africa and Asia, usually growing in shady places with

Agastache rugosa, also known as wrinkled giant hyssop, Korean mint, purple giant hyssop, Indian mint, Chinese patchouli, or Huoxiang (Chinese: 藿香; pinyin: huòxiāng), is an aromatic herb in the mint family, native to East Asia (China, Japan, Korea, Russian Primorye, Taiwan, India, and Vietnam).

Hammarbya paludosa (or Malaxis paludosa) is a small orchid commonly known as bog orchid, bog adder's-mouth or bog adder's-mouth orchid. It grows in bogs in temperate and subarctic regions of the Northern Hemisphere.

Richetia faguetiana is a species of plant in the family Dipterocarpaceae. Along with other species in the genus Richetia, it is also known as the yellow meranti. It is native to Borneo, the Malay Peninsula, and Thailand. It is the second tallest flowering plant, and sixth tallest living tree; the tallest living specimen, Menara was measured to be 97.58 m (320.1 ft) height in 2019.

Oncotheca is a genus of tree endemic to New Caledonia. There are two species, Oncotheca balansae and Oncotheca humboldtiana. Oncotheca is the sole genus of the Oncothecaceae, which is one of three families of flowering plants endemic to New Caledonia. Its placement has been enigmatic for a long time, but a recent phylogenetic analysis based on 73 plastid genes found it to be sister to Icacinaceae. It is now placed in the order Icacinales.

Aloe bakeri is a species of flowering plant in the family Asphodelaceae, native to Madagascar, where it grows on rocky hills at low elevations. Growing to 10–20 cm (4–8 in) tall by 40 cm (16 in) wide, it is an evergreen perennial forming multiple rosettes of spidery succulent green or reddish-green toothed leaves, heavily mottled with white. The leaves are typically 10 cm (4 in) long and bear straight or slightly curved white teeth that are 1 mm long and about 1-2 mm apart. In summer it produces red or orange, green-tipped tubular flowers. These flowers are attractive to birds, bees, and

Toxicodendron vernix, commonly known as poison sumac, or swamp-sumach, is a woody shrub or small tree growing to 9 metres (30 feet) tall. It was previously known as Rhus vernix. This plant is also known as thunderwood, particularly where it occurs in the southern United States. Like its toxic relatives poison ivy and poison oak, all parts of the plant contain a resin called urushiol, which causes skin and mucous membrane irritation to humans. When the plant is burned, inhalation of the smoke may cause the rash to appear on the lining of the lungs, causing extreme pain and possibly fatal

St. Augustine grass (Stenotaphrum secundatum), also known as buffalo turf in Australia and buffalo grass in South Africa, is a species of grass in the family Poaceae. It is a warm-season lawn grass that is popular for cultivation in tropical and subtropical regions. It is a medium- to high-maintenance grass that forms a thick, carpetlike sod, crowding out most weeds and other grasses.

Clinopodium grandiflorum, the large-flowered calamint, showy calamint or mint savory, is a species of ornamental plant.

Boesenbergia is a genus of plants in the ginger family. It contains more than 90 species, native to China, the Indian subcontinent, and Southeast Asia (Thailand, Malaysia, Philippines, Indonesia, etc.).

Thomandersia is the sole genus in the Thomandersiaceae, an African family of flowering plants. Thomandersia is a genus of shrubs and small trees, with six species native to Central and West Africa. Thomandersia traditionally has been classified within the family Acanthaceae based on morphology by several authors, including APG I 1998, APG II 2003, and in Schlegeliaceae at APG Website Missouri Botanical Garden, in a list of genera of this family, but Stevens argues further that should be considered out of this taxon by weak support and regarded Thomandersiaceae. The genus was elevated to