Plants named in 1920

Ochroma pyramidale, commonly known as balsa, is a large, fast-growing tree native to the Americas. It is the sole member of the genus Ochroma, and is classified in the subfamily Bombacoideae of the mallow family Malvaceae. The tree is famous for its wide usage in woodworking, due to its softness and its high strength compared to its low density. The name balsa is the Spanish word for "raft" and the Portuguese word for ferry. A deciduous angiosperm, Ochroma pyramidale can grow up to 30 metres (98 ft) tall, and is classified as a hardwood despite the wood itself being very soft; it is the

Abies koreana (Korean: 구상나무, Gusang namu), the Korean fir, is a species of fir native to the higher mountains of South Korea, including Jeju Island. It grows at altitudes of 1,000–1,900 metres (3,300–6,200 ft) in temperate rainforest with high rainfall and cool, humid summers, and heavy winter snowfall.

Larix gmelinii, the Dahurian larch or East Siberian larch, is a species of larch native to eastern Siberia and adjacent northeastern Mongolia, northeastern China (Heilongjiang), and the Korean peninsula.

Elodea nuttallii is a species of waterweed known by the common name western waterweed or Nuttall's waterweed. This is a perennial aquatic plant which is native to North America where it grows submersed in lakes, rivers, and other shallow water bodies. It is also found in Eurasia, where it is commonly weedy; it is not known as a weed species in its native range. It is sometimes used as an aquarium plant.

Pottiales is an order of mosses in the subclass Dicranidae.

Espostoa is a genus of columnar cacti, comprising 16 species known from the Andes of southern Ecuador and Peru. It usually lives at an altitude of between 800m and 2500m. Its fruit is edible, sweet, and juicy. The genus is named after Nicolas E. Esposto, a renowned botanist from Lima.

Dicranales is an order of haplolepidous mosses in the subclass Dicranidae.

Grimmiales is an order of mosses in the subclass Dicranidae. It comprises four families: Grimmiaceae, Ptychomitriaceae, Seligeriaceae, and Saelaniaceae.

Arrojadoa is a genus of cacti, comprising 9 species. It is named after the Brazilian botanist Miguel Arrojado Lisboa (1872–1932) who was superintendent of the Brazilian Railways at the time that Britton and Rose described the genus in 1920. The genus occurs only in northern Brazil and is found at rocky places, under shrubs, which support their frail stalk. They are subtropical plants, with very little frost tolerance.

Abies fabri (Faber's fir) is a conifer species in the family Pinaceae. It is endemic to Sichuan in western China, occurring on the sacred mountain of Emei Shan (from where it was first described) and westward to the Gongga Shan massif, growing at altitudes of 1,500–4,000 metres (4,900–13,100 ft). It is a tree growing to 40 metres (130 ft) tall, with a trunk up to a metre in diameter, and a conical to broad columnar crown. The shoots are yellowish-brown, hairless or slightly hairy. The leaves are linear, 1.5–3 centimetres (0.59–1.18 in) long and 2–2.5 millimetres (0.079–0.098 in) wide, glossy

Funariales is an order containing 356 species, 26 genera and 7 families. 1. Gigaspermaceae 2. Funariaceae (ca. 300 species) 3. Disceliaceae 4. Oedipodiacea 5. Splachaceae 6. Ephemeraceae 7. Splachnobryaceae The members are small, annual or biennial land mosses. The family Disceliaceae and its only species, Discelium nudum, was formerly placed in this order, but is now placed in its own order, Disceliales.

Browningia is a genus of cacti, comprising 11 accepted and 3 unresolved species. It is named for Webster E Browning (1869-1942), director of the Instituto Inglés, Santiago, Chile.

Stetsonia coryne, the toothpick cactus, is the sole species in the cactus genus Stetsonia. Stetsonia coryne is native to arid regions of South America, where it grows to a height of 15 to 25 ft (4.6 to 7.6 m) tall. It contains mescaline and other alkaloids.

Neoraimondia is a genus of medium to large cacti from Peru. The genus is named after the Italian-born Peruvian explorer, naturalist, and scientist, Antonio Raimondi.

Hylocomiaceae is a family of mosses in the order Hypnales. It includes 14 genera and around 36 species.

Corryocactus is a genus of cacti found in Bolivia, Peru and northern Chile.

Brachystele is a genus of flowering plants from the orchid family, Orchidaceae. It consists of 20 species native primarily to South America but with a few species in Mexico, Central America, and Trinidad and Tobago. Brachystele arechavaletae (Kraenzl.) Schltr. Brachystele bicrinita Szlach. Brachystele bracteosa (Lindl.) Schltr. Brachystele burkartii M.N.Correa Brachystele camporum (Lindl.) Schltr. Brachystele chlorops (Rchb.f.) Schltr. Brachystele cyclochila (Kraenzl.) Schltr. Brachystele delicatula (Kraenzl.) Schltr. Brachystele dilatata (Lindl.) Schltr. Brachystele guayanensis (Lindl.)

Funkiella is a genus of flowering plants from the orchid family, Orchidaceae native to Mexico and Central America. Funkiella hyemalis (A.Rich. & Galeotti) Schltr - from central Mexico to Guatemala Funkiella laxispica (Catling) Salazar & Soto Arenas - Oaxaca Funkiella parasitica (A.Rich. & Galeotti) Salazar & Soto Arenas - from central Mexico to Costa Rica Funkiella stolonifera (Ames & Correll) Garay - Chiapas, Guatemala Funkiella tenella (L.O.Williams) Szlach. - Chihuahua, Durango Funkiella valerioi (Ames & C.Schweinf.) Salazar & Soto Arenas - Costa Rica, Guatemala Funkiella versiformis

Caucaea is a genus of flowering plants from the orchid family, Orchidaceae. It contains 9 currently recognized species, all native to northwestern South America.

Beloglottis is a genus of the family Orchidaceae. This genus belongs to the tribe Cranichideae and subtribe Spiranthinae. Orchids of the genus Beloglottis are terrestrial sympodial plants that can be used as herbal supplements. They have short, solitary stems that stand erect and the fleshy roots contain small hair-like projections and are arranged in a fascicle. Several leaves containing a petiole form at the base of the plant. The flowers appear as if they are upside down.

Acroceras is a genus of tropical and subtropical plants in the grass family. The genus is widespread across warmer parts of Asia, Africa, and the Americas, with a high amount of diversity in Madagascar. Species formerly included see Brachiaria Panicum Acroceras paucispicatum - Brachiaria paucispicata Acroceras pilgerianum - Panicum pilgerianum

Schiedeella is a genus of flowering plants from the orchid family, Orchidaceae. It is native to the Western Hemisphere: Mexico, the West Indies and Central America, with one species (S. arizonica) in the southwestern United States (Arizona, New Mexico and Texas).

Porroglossum (from Greek "far off" and "tongue", referring to the position of the lip) is a genus of orchids native to the Andes of South America. The center of diversity lies in Ecuador, with many of the species endemic to that country, though others are found in Colombia, Venezuela, Peru, and Bolivia. This genus is abbreviated Prgm in horticultural trade. The lip in this genus is unique in the family. It is hinged and has a mechanism that snaps shut when stimulated by a pollinator, thus trapping the insect to ensure that the pollinia will be removed and later transferred to the receptive

Hapalorchis is a genus of flowering plants from the orchid family, Orchidaceae, native to Central America, South America, and the West Indies. Hapalorchis cymbirostris Szlach. - Rio de Janeiro Hapalorchis lindleyana Garay - Rio de Janeiro Hapalorchis lineata (Lindl.) Schltr. - widespread from Guatemala east to Puerto Rico and south to Brazil Hapalorchis longirostris Schltr. - Colombia Hapalorchis neglecta Szlach. & Rutk. - Ecuador Hapalorchis pandurata Szlach. - Rio de Janeiro Hapalorchis piesikii Szlach. & Rutk. - Colombia Hapalorchis pumila (C.Schweinf.) Garay - Costa Rica, Ecuador, Peru

Facheiroa is a genus of cacti that is endemic to Brazil.

Pteroglossa is a genus of flowering plants from the orchid family, Orchidaceae. It is native to South America, Central America, and Mexico. Pteroglossa euphlebia (Rchb.f.) Garay - Rio de Janeiro Pteroglossa glazioviana (Cogn.) Garay - Brazil, Paraguay Pteroglossa hilariana (Cogn.) Garay - Brazil Pteroglossa lurida (M.N.Correa) Garay - Brazil, Paraguay, Argentina Pteroglossa luteola Garay - Argentina Pteroglossa macrantha (Rchb.f.) Schltr. - Brazil, Paraguay, Venezuela Pteroglossa magnifica Szlach. - Paraguay Pteroglossa regia (Kraenzl.) Schltr. - Argentina Pteroglossa rhombipetala Garay -

Mesadenus is a genus of flowering plants from the orchid family, Orchidaceae. It contains five currently recognized species, native to Mexico, Central America, the West Indies, and Florida. Mesadenus chiangii (M.C.Johnst.) Garay - Coahuila Mesadenus lucayanus (Britton) Schltr. - widespread across Mexico, Florida, Guatemala, West Indies Mesadenus perezii R.González & Lizb.Hern. – western Mexico (Aguascalientes and Jalisco) Mesadenus polyanthus (Rchb.f.) Schltr. - Mexico, Belize Mesadenus tenuissimus (L.O.Williams) Garay - Morelos A phylogenetic study published in 2019 found that the genus as

Magnolia rostrata, the beaked magnolia, is a species of plant in the family Magnoliaceae. It is found in the Himalayas (Tibet, Yunnan, Myanmar). It is an IUCN Red List endangered species, threatened by habitat loss.

Eucalyptus dalrympleana, commonly known as mountain gum, mountain white gum, white gum and broad-leaved ribbon gum, is a species of tree that is endemic to southeastern Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped, bell-shaped or hemispherical fruit.

Coccineorchis is a genus of flowering plants from the orchid family, Orchidaceae. It contains 7 accepted species, native to Mexico, Central America, Colombia, Ecuador and Peru. Coccineorchis bracteosa (Ames & C.Schweinf.) Garay - Costa Rica, Panama, Nicaragua, Ecuador Coccineorchis cernua (Lindl.) Garay - Mexico, Central America, Colombia, Ecuador, Peru Coccineorchis cristata Szlach., Rutk. & Mytnik - Panama Coccineorchis dressleri Szlach., Rutk. & Mytnik - Panama Coccineorchis navarrensis (Ames) Garay - Costa Rica, Panama, Nicaragua, Colombia Coccineorchis standleyi (Ames) Garay - Costa