Plants named in 1833

Rhamphospermum nigrum (syns. Mutarda nigra, Brassica nigra, and Sinapis nigra), black mustard, is an annual plant native to cooler regions of North Africa, temperate regions of Europe, and parts of Asia..It is cultivated for its dark-brown-to-black seeds, which are commonly used as a spice.

Eleocharis dulcis, the Chinese water chestnut or water chestnut, is a grass-like sedge native to Asia, tropical Africa, and Oceania. It is grown in many countries for its edible corms, but if eaten uncooked, the surface of the plants may transmit fasciolopsiasis. The water caltrop, which also is referred to by the same name, is unrelated and often confused with the water chestnut.

Chlamydomonas ( KLAM-ih-DOM-ə-nəs, -⁠də-MOH-) is a genus of green algae consisting of about 150 species of unicellular flagellates, found in stagnant water and on damp soil, in freshwater, seawater, and even in snow as "snow algae". Chlamydomonas is used as a model organism for molecular biology, especially studies of flagellar motility and chloroplast dynamics, biogenesis, and genetics. One of the many striking features of Chlamydomonas is that it contains ion channels (channelrhodopsins) that are directly activated by light. Some regulatory systems of Chlamydomonas are more complex than

Abies sibirica, the Siberian fir, is a coniferous evergreen tree native to the taiga east of the Volga River and south of 67°40' North latitude in Siberia through Turkestan, northeast Xinjiang, Mongolia and Heilongjiang.

Abies grandis (grand fir, giant fir, lowland white fir, great silver fir, western white fir, Vancouver fir, or Oregon fir) is a fir native to northwestern North America, occurring at altitudes of sea level to 1,700 metres (5,600 ft). It is a major constituent of the Grand Fir/Douglas Fir Ecoregion of the Cascade Range. The tree typically grows to 40–70 m (130–230 ft) in height, and may be the tallest Abies species in the world. There are two varieties, the taller coast grand fir, found west of the Cascade Mountains, and the shorter interior grand fir, found east of the Cascades. It was first

Picea obovata, the Siberian spruce, is a spruce native to Siberia, from the Ural Mountains east to Magadan Oblast, and from the Arctic tree line south to the Altay Mountains in northwestern Mongolia. It is a medium-sized evergreen tree growing to 15–35 m tall, and with a trunk diameter of up to 1.5 m, and a conical crown with drooping branchlets. The shoots are orange-brown, with variably scattered to dense pubescence. The leaves are needle-like, 1–2 cm long, rhombic in cross-section, shiny green to grayish-green with inconspicuous stomatal lines; the leaves subtending a bud are distinctively

Larix sibirica, the Siberian larch or Russian larch, is a frost-hardy tree native to western Russia, from close to the Finnish border east to the Yenisei valley in central Siberia, where it hybridises with the Dahurian larch L. gmelinii of eastern Siberia; the hybrid is known as Larix × czekanowskii.

Alnus rubra, the red alder, is a deciduous broadleaf tree native to western North America (Alaska, Yukon, British Columbia, Washington, Oregon, California, Idaho and Montana).

The Limnanthaceae are a small family of annual herbs occurring throughout temperate North America. There are eight species and nineteen taxa currently recognized. Members of this family are prominent in vernal pool communities of California. Some taxa have been domesticated for use as an oil seed crop. Some members are listed as threatened or endangered and have been the focus of disputes over development plans (e.g. Limnanthes floccosa subsp. californica, Limnanthes vinculans). The Limnanthaceae are members of a recently identified clade (Brassicales) of mustard oil producing plants. They

Dicentra (Greek dís "twice", kéntron "spur"), known collectively as the bleeding-hearts, is a genus containing eight species of herbaceous flowering perennial plants with unique, "heart"-shaped flowers and finely divided foliage. The species are, primarily, native to North America, although several are found in temperate East Asia.

Cordyline australis, commonly known as the cabbage tree, or by its Māori name of tī or tī kōuka, is a widely branched monocot tree endemic to New Zealand. It grows up to 20 metres (66 feet) tall with a stout trunk and sword-like leaves, which are clustered at the tips of the branches and can be up to 1 metre (3 feet 3 inches) long. With its tall, straight trunk and dense, rounded heads, it is a characteristic feature of the New Zealand landscape. It is common over a wide latitudinal range from the far north of the North Island to the south of the South Island. It grows in a broad range of

Echinochloa colona, commonly known as jungle rice, wild rice, deccan grass, jharua or awnless barnyard grass, is a type of wild grass originating from tropical Asia. It was formerly classified as a species of Panicum. It is the wild ancestor of the cultivated cereal crop Echinochloa frumentacea, sawa millet. Some taxonomists treat the two taxa as one species, in which case the domesticated forms may also be referred to as E. colona.

Brassica rapa is an annual to biennial plant species native to Eurasia that is from the Brassicaceae family. The B. rapa subspecies oleifera is an oilseed commonly known as turnip rape, field mustard, bird's rape, and keblock. It has been widely cultivated into many forms, including the turnip (a root vegetable), komatsuna, Chinese cabbage, bomdong, pak choi / bok choy, and rapini. Its domesticated forms include turnips and leafy greens, such as bok choy and napa cabbage. The oilseed types are grown for food and industrial uses. Genetic studies indicate that B. rapa was one of the earliest

Stachys affinis, commonly called crosne, Chinese artichoke, Japanese artichoke, knotroot, or artichoke betony, is a perennial herbaceous plant of the family Lamiaceae, originating from China. Its rhizome is a root vegetable that can be eaten raw, pickled, dried or cooked.

Sagina nodosa, the knotted pearlwort, is a species in the genus Sagina, native to northern Europe. It is a low-growing plant up to 15 cm tall, with paired leaves up to 1 cm long. The flowers are 5–10 mm diameter, with five white petals.

Populus laurifolia, the laurel poplar, is a species of flowering plant in the family Salicaceae, native to Kazakhstan, the Altai, Mongolia, and Xinjiang in China. It hybridizes readily with other species of poplar, and has high genetic variation.

Mentha requienii, or Corsican mint, is an herb and species of mint, native to Corsica, Sardinia, and Montecristo Island, and naturalized in Portugal and in the British Isles. It is a very low-growing species with bright green leaves and a strong minty aroma.

Blumea is a genus of flowering plants of the family Asteraceae.

Salvia columbariae is an annual plant that is commonly called chia, chia sage, golden chia, or desert chia, because its seeds are used in the same way as those of Salvia hispanica (chia). It grows in California, Nevada, Utah, Arizona, New Mexico, Sonora, and Baja California, and was an important food for Native Americans. Some native names include pashiiy from Tongva and it'epeš from Ventureño.

Ipomoea purga is a species of flowering plant in the genus Ipomoea. It is commonly referred to as jalap and is probably also the source of the John the Conqueror amulet legend.

Aspasia, abbreviated as Asp. in the horticultural trade, is a genus of 7 species of orchids occurring from southern Mexico to southern Brazil. The genus is closely related to Miltonia and Brassia. Aspasia species have few medium size flowers of exquisite colors which are occasionally cultivated or used to produce artificial hybrids.

Sterculioideae is a subfamily of the family Malvaceae containing evergreen and deciduous tree and shrub genera, that were previously placed in the obsolete family Sterculiaceae.

Salvia miltiorrhiza (Chinese: 丹參; pinyin: dānshēn), also known as red sage, redroot sage, Chinese sage, or danshen, is a perennial plant in the family Lamiaceae, highly valued for its roots in traditional Chinese medicine. Native to China and Japan, it grows at 90 to 1,200 m (300 to 3,940 ft) elevation, preferring grassy places in forests, hillsides, and along stream banks. The specific epithet miltiorrhiza means "red ochre root".

Salvia farinacea, the mealycup sage, or mealy sage, is a herbaceous perennial native to Nuevo León, Mexico and parts of the United States including Texas and Oklahoma. Violet-blue spikes rest on a compact plant of typically narrow salvia-like leaves; however, the shiny leaves are what set this species apart from most other Salvia, which bear velvety-dull leaves.

Galearis is a genus of the orchid family (Orchidaceae) native to North America and eastern Asia. It contains about ten recognized species. The family name comes from the Greek word orchis ('testicle'), in reference to the shape of the root.

Dichaea is a genus of plants in family Orchidaceae. It contains about 100 species native to tropical America.

Cremastra is a genus of flowering plants from the orchid family, Orchidaceae. It contains 4 currently recognized species (as of May 2014), native to China, Japan, Korea, Thailand, the Himalayas, and the Russian Far East.

Chloridoideae is one of the largest subfamilies of grasses, with roughly 150 genera and 1,600 species, mainly found in arid tropical or subtropical grasslands. Within the PACMAD clade, their sister group is the Danthonioideae. The subfamily includes widespread weeds such as Bermuda grass (Cynodon dactylon), goosegrass (Eleusine indica) or finger grass (Chloris), but also millet species grown in some tropical regions, namely finger millet (Eleusine coracana) and teff (Eragrostis tef). With the exception of some species in Ellisochloa and Eleusine indica, most of the subfamily's species use the

Anemarrhena is a plant genus in family Asparagaceae, subfamily Agavoideae. It has only one species, Anemarrhena asphodeloides, native to China and Mongolia. Some authors have placed it in its own family, Anemarrhenaceae.

Acer truncatum, the Shantung maple, Shandong maple, or purpleblow maple, is a maple native to northern China, in the provinces of Gansu, Hebei, Henan, Jiangsu, Jilin, Liaoning, Inner Mongolia, Shaanxi, Shandong, Shanxi, and to Korea. It is a medium-sized deciduous tree growing to 15 metres (49 ft) tall with a broad, rounded crown. The bark is smooth on young trees, becoming shallowly ridged with age. The leaves are opposite, palmately lobed with five lobes, 5 centimetres (2.0 in) to 12 centimetres (4.7 in) long and 7 centimetres (2.8 in) to 11 centimetres (4.3 in) broad, with a 3 centimetres