''Sapindus'' is a genus of about thirteen species of

shrub A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...

s and small

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only ...

s in the

lychee Lychee ( , ; ''Litchi chinensis''; ) is a monotypic taxon and the sole member in the genus ''Litchi'' in the soapberry family, Sapindaceae. There are three distinct subspecies of lychee. The most common is the Indochinese lychee found in So ...

family,

Sapindaceae The Sapindaceae are a family (biology), family of flowering plants in the order Sapindales known as the soapberry family. It contains 138 genera and 1,858 accepted species. Examples include Aesculus, horse chestnut, maples, ackee and lychee. The ...

and tribe Sapindeae. It is native to warm

temperate In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of the Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ran ...

tropical The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...

regions of the world. The genus includes both

deciduous In the fields of horticulture and botany, the term deciduous () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed Leaf, leaves, usually in the autumn; to the shedding of petals, aft ...

and

evergreen In botany, an evergreen is a plant which has Leaf, foliage that remains green and functional throughout the year. This contrasts with deciduous plants, which lose their foliage completely during the winter or dry season. Consisting of many diffe ...

species. Members of the genus are commonly known as soapberries or soapnuts because the fruit pulp is used to make

soap Soap is a salt (chemistry), salt of a fatty acid (sometimes other carboxylic acids) used for cleaning and lubricating products as well as other applications. In a domestic setting, soaps, specifically "toilet soaps", are surfactants usually u ...

. The generic name is derived from the

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

words ''sapo'', meaning "soap", and ''indicus'', meaning "of

India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...

". The

leaves A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, ...

are alternate, long,

pinnate Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis. Pinnation occurs in biological morphology, in crystals, such as some forms of ice or metal crystals, and ...

(except in ''S. oahuensis'', which has simple leaves), with 14-30 leaflets, the terminal leaflet often absent. The

flower Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, m ...

s form in large

panicle In botany, a panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a p ...

s, each flower small, creamy white. The

fruit In botany, a fruit is the seed-bearing structure in flowering plants (angiosperms) that is formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate their seeds. Edible fruits in particular have long propaga ...

is a small leathery-skinned

drupe In botany, a drupe (or stone fruit) is a type of fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pip'' (UK), ''pit'' (US), ''stone'', or ''pyrena'') of hardened endocarp with a seed ...

in diameter, yellow ripening blackish, containing one to three

seed In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be Sowing, sown, which may include seed and husk or tuber. Seeds ...

s. Fossils date back to the

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...

Uses

Sapindus emarginatus in Hyderabad W IMG 4650

The drupes (soapnuts) contain

saponin Saponins (Latin ''sapon'', 'soap' + ''-in'', 'one of') are bitter-tasting, usually toxic plant-derived secondary metabolites. They are organic chemicals that become foamy when agitated in water and have high molecular weight. They are present ...

s, which have

surfactant Surfactants are chemical compounds that decrease the surface tension or interfacial tension between two liquids, a liquid and a gas, or a liquid and a solid. The word ''surfactant'' is a Blend word, blend of "surface-active agent", coined in ...

properties, being used for washing by ancient Asian and American peoples. A number of other uses for ''Sapindus'' have also been reported such as making arrows from the wood and decorative objects from the seeds.

Folk medicine

Leaf and fruit extracts of ''Sapindus'' have historically been used in folk remedies to treat various conditions.

Insecticide

''Sapindus'' species are used as food plants by the

larvae A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect developmental biology, development such as insects, some arachnids, amphibians, or cnidarians typical ...

of some

Lepidoptera Lepidoptera ( ) or lepidopterans is an order (biology), order of winged insects which includes butterflies and moths. About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organ ...

(moths and butterflies) species including '' Endoclita malabaricus''. Kernel extracts of soapnut disrupt the activity of enzymes of larvae and pupae and inhibit the growth of the

mosquito Mosquitoes, the Culicidae, are a Family (biology), family of small Diptera, flies consisting of 3,600 species. The word ''mosquito'' (formed by ''Musca (fly), mosca'' and diminutive ''-ito'') is Spanish and Portuguese for ''little fly''. Mos ...

Aedes aegypti ''Aedes aegypti'' ( or from Greek 'hateful' and from Latin, meaning 'of Egypt'), sometimes called the Egyptian mosquito, dengue mosquito or yellow fever mosquito, is a mosquito that spreads diseases like dengue fever, yellow fever, malar ...

'', an important

vector Vector most often refers to: * Euclidean vector, a quantity with a magnitude and a direction * Disease vector, an agent that carries and transmits an infectious pathogen into another living organism Vector may also refer to: Mathematics a ...

of viral diseases.

Dyeing process

Soapnut is used as a scouring agent for preparation of coloring fibers such as the yarn of Tussar silk and cotton.

Species

Sapindus emarginatus in Hyderabad W2 IMG 4648

The number of species is disputed between different authors, particularly in

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

where between one and three species are accepted. , ''

Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ...

'' includes:Plants of the World Online: ''Sapindus'' Tourn. ex L. (retrieved 24 February 2024)
/ref> # '' Sapindus chrysotrichus'' (southern

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

) # '' Sapindus delavayi'' (China, India) # '' Sapindus drummondii'' (USA: Arizona to SE. Colorado and Louisiana) # '' Sapindus emarginatus'' (Southern Asia) # '' Sapindus lippoldii'' (

Cuba Cuba, officially the Republic of Cuba, is an island country, comprising the island of Cuba (largest island), Isla de la Juventud, and List of islands of Cuba, 4,195 islands, islets and cays surrounding the main island. It is located where the ...

) # ''

Sapindus mukorossi ''Sapindus mukorossi'', commonly known as Indian soapberry, washnut, ritha or Chinese soapberry, is a species of tree in the family Sapindaceae. It is a deciduous tree that grows in the lower foothills and midhills of the Himalayas at altitudes ...

'' – Indian Soapberry (

and the

Himalayas The Himalayas, or Himalaya ( ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the Earth's highest peaks, including the highest, Mount Everest. More than list of h ...

east to

Indochina Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...

and

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

) # '' Sapindus oahuensis'' – Lonomea (

Kauaʻi Kauai (), anglicized as Kauai ( or ), is one of the main Hawaiian Islands. It has an area of 562.3 square miles (1,456.4 km2), making it the fourth-largest of the islands and the 21st-largest island in the United States. Kauai lies 73 mi ...

and Oʻahu,

Hawaii Hawaii ( ; ) is an island U.S. state, state of the United States, in the Pacific Ocean about southwest of the U.S. mainland. One of the two Non-contiguous United States, non-contiguous U.S. states (along with Alaska), it is the only sta ...

) # '' Sapindus rarak'' (

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

) # '' Sapindus saponaria'' - 4 subspecies, previously considered as 2: ## "''S. s.'' var. ''drummondii''" (Hook. & Arn.) L.D.Benson – Western Soapberry (

southwestern US The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural region of the United States that includes Arizona and New Mexico, along with adjacent portions of California, Colorado, N ...

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

) is '' S. drummondii'' ## ''S. s.'' var. ''saponaria'' – Wingleaf Soapberry ( southeastern US,

Caribbean The Caribbean ( , ; ; ; ) is a region in the middle of the Americas centered around the Caribbean Sea in the Atlantic Ocean, North Atlantic Ocean, mostly overlapping with the West Indies. Bordered by North America to the north, Central America ...

, island of Hawaiʻi, Central,

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

);
'' Sapindus marginatus'' Willd. – Florida Soapberry - included here. # '' Sapindus sonlaensis'' (

Sơn La Sơn La (; Tai Dam: ) is a city in the north-west region of Vietnam. It is the capital of Sơn La Province. It is bordered by Thuận Châu District, Mường La District, and Mai Sơn District. History In the era of the Sip Hoc Chau Tai, ...

, NW Vietnam) # '' Sapindus tomentosus'' - China # '' Sapindus trifoliatus'' L. – South India Soapnut or Three-leaf Soapberry: Southern

Pakistan Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the List of countries and dependencies by population, fifth-most populous country, with a population of over 241.5 million, having the Islam by country# ...

(synonym ''S. laurifolius'' Vahl = "Ritha") # '' Sapindus vitiensis'' A.Gray (

American Samoa American Samoa is an Territories of the United States, unincorporated and unorganized territory of the United States located in the Polynesia region of the Pacific Ocean, South Pacific Ocean. Centered on , it is southeast of the island count ...

Samoa Samoa, officially the Independent State of Samoa and known until 1997 as Western Samoa, is an island country in Polynesia, part of Oceania, in the South Pacific Ocean. It consists of two main islands (Savai'i and Upolu), two smaller, inhabited ...

Fiji Fiji, officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists of an archipelago of more than 330 islands—of which about ...

)

Formerly placed here

*'' Lepisanthes fruticosa'' (Roxb.) Leenh. (as ''S. fruticosus'' Roxb.) *'' Lepisanthes senegalensis'' (Juss. ex Poir.) Leenh. (as ''S. senegalensis'' Juss. ex Poir.) *'' Lepisanthes tetraphylla'' (Vahl) Radlk. (as ''S. tetraphylla'' Vahl) *''

Talisia cerasina ''Talisia'' is a genus of 52 species of flowering plants in the family Sapindaceae, native to tropical regions of the Americas. The genus is closely related to ''Melicoccus'', with some species sometimes included in that genus. The species are e ...

'' (Benth.) Radlk. (as ''S. cerasinus'' Benth.) *'' Talisia esculenta'' (A.St.-Hil.) Radlk. (as ''S. esculenta'' A.St.-Hil.)

References

External links

* *
Flora of India: ''Sapindus''

Flora of Pakistan: ''Sapindus''

Flora of China: ''Sapindus'' species list
{{Taxonbar, from=Q321451 Sapindaceae genera Taxa named by Carl Linnaeus