Physalis peruviana
Encyclopedia
Physalis peruviana is the plant and its fruit, also known as cape gooseberry (South Africa), Inca berry, Aztec berry, golden berry, giant ground cherry, Peruvian groundcherry, Peruvian cherry (U.S.), poha (Hawaii), ras bhari (India), aguaymanto (Peru), uvilla (Ecuador), uchuva (Colombia) and (rarely) physalis.
It is indigenous to South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

, but has been cultivated in England since the late 18th century and in South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

 in the region of the Cape of Good Hope
Cape of Good Hope
The Cape of Good Hope is a rocky headland on the Atlantic coast of the Cape Peninsula, South Africa.There is a misconception that the Cape of Good Hope is the southern tip of Africa, because it was once believed to be the dividing point between the Atlantic and Indian Oceans. In fact, the...

 since at least the start of the 19th century.

Characteristeristics

Physalis peruviana is closely related to the tomatillo
Tomatillo
The tomatillo is a plant of the nightshade family, related to the cape gooseberry, bearing small, spherical and green or green-purple fruit of the same name. Tomatillos are a staple in Mexican cuisine. Tomatillos are grown as annuals throughout the Western Hemisphere...

, a fellow member of the genus Physalis
Physalis
Physalis is a genus of plants in the nightshade family , native to warm temperate and subtropical regions throughout the world. The genus is characterised by the small orange fruit similar in size, shape and structure to a small tomato, but partly or fully enclosed in a large papery husk derived...

. As a member of the plant family Solanaceae
Solanaceae
Solanaceae are a family of flowering plants that include a number of important agricultural crops as well as many toxic plants. The name of the family comes from the Latin Solanum "the nightshade plant", but the further etymology of that word is unclear...

, it is more distantly related to a large number of edible plants, including tomato
Tomato
The word "tomato" may refer to the plant or the edible, typically red, fruit which it bears. Originating in South America, the tomato was spread around the world following the Spanish colonization of the Americas, and its many varieties are now widely grown, often in greenhouses in cooler...

, eggplant, and potato
Potato
The potato is a starchy, tuberous crop from the perennial Solanum tuberosum of the Solanaceae family . The word potato may refer to the plant itself as well as the edible tuber. In the region of the Andes, there are some other closely related cultivated potato species...

, and other members of the nightshades. It is not closely related to the cherry
Cherry
The cherry is the fruit of many plants of the genus Prunus, and is a fleshy stone fruit. The cherry fruits of commerce are usually obtained from a limited number of species, including especially cultivars of the wild cherry, Prunus avium....

, Ribes
Ribes
Ribes is a genus of about 150 species of flowering plants native throughout the temperate regions of the Northern Hemisphere. It is usually treated as the only genus in the family Grossulariaceae. Seven subgenera are recognized....

gooseberry
Gooseberry
The gooseberry or ; Ribes uva-crispa, syn. R. grossularia) is a species of Ribes, native to Europe, northwestern Africa and southwestern Asia...

, Indian gooseberry
Indian gooseberry
Phyllanthus emblica , the Indian gooseberry, or aamla, is a deciduous tree of the Phyllanthaceae family. It is known for its edible fruit of the same name.-Plant anatomy and harvesting:...

, or Chinese gooseberry, as its various names might suggest.

The fruit
Fruit
In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

 is a smooth berry
Berry
The botanical definition of a berry is a fleshy fruit produced from a single ovary. Grapes are an example. The berry is the most common type of fleshy fruit in which the entire ovary wall ripens into an edible pericarp. They may have one or more carpels with a thin covering and fleshy interiors....

, resembling a miniature spherical yellow tomato. Removed from its cape, it is about the size of a marble
Marble (toy)
A marble is a small spherical toy usually made from glass, clay, steel, or agate. These balls vary in size. Most commonly, they are about ½ inch in diameter, but they may range from less than ¼ inch to over 3 inches , while some art glass marbles fordisplay purposes are over 12 inches ...

, say 1-2 cm in diameter. Like a tomato, it contains numerous small seed
Seed
A seed is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food. It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth within the mother plant...

s. It is bright yellow to orange in color, and it is sweet when ripe, with a characteristic, mildly tart flavor, making it ideal for snack
Snack
A snack is a small portion of food eaten between meals. The food might be snack food—items like potato chips or baby carrots—but could also simply be a smaller amount of any food item.-Snacks and health:...

s, pie
Pie
A pie is a baked dish which is usually made of a pastry dough casing that covers or completely contains a filling of various sweet or savoury ingredients....

s or jams. It is popular in salads and fruit salads, sometimes combined with avocado
Avocado
The avocado is a tree native to Central Mexico, classified in the flowering plant family Lauraceae along with cinnamon, camphor and bay laurel...

.

A prominent feature is the inflated, papery calyx
Calyx
-Anatomy:*structural components of the mammalian kidney** Major calyx** Minor calyx* Calyx of Held, a large synapse in the auditory brainstem structure* Calyx , the crown of a crinoid-Other:* Calyx , a UK producer of drum and bass...

 enclosing each berry. The calyx is accrescent; at first it is of normal size, but after the petals fall it continues to grow until it forms a protective cover round the growing fruit. Because of the fruit's decorative appearance, it is popular in restaurants as an exotic garnish for dessert
Dessert
In cultures around the world, dessert is a course that typically comes at the end of a meal, usually consisting of sweet food. The word comes from the French language as dessert and this from Old French desservir, "to clear the table" and "to serve." Common Western desserts include cakes, biscuits,...

s. If the fruit is left inside the husks, its shelf life at room temperature is about 30–45 days.

Geographic and cultivation origins

Native to high-altitude, tropical Peru
Peru
Peru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....

, Colombia
Colombia
Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

, Chile
Chile
Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

, and Ecuador
Ecuador
Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

  where the fruits grow wild, physalis is casually eaten and occasionally sold in markets. Only recently has the plant become an important crop; it has been widely introduced into cultivation in other tropical, subtropical and even temperate areas.

The plant was grown by early settlers of the Cape of Good Hope
Cape of Good Hope
The Cape of Good Hope is a rocky headland on the Atlantic coast of the Cape Peninsula, South Africa.There is a misconception that the Cape of Good Hope is the southern tip of Africa, because it was once believed to be the dividing point between the Atlantic and Indian Oceans. In fact, the...

 before 1807. It is not clear whether it was grown there before its introduction to England. Many assume that this fact inspired the common name, "Cape gooseberry", but in recent decades it has been argued that it is neither a "gooseberry" nor from the "Cape" and that the name properly refers to the the calyx surrounding the fruit like a cape
Cape
Cape can be used to describe any sleeveless outer garment, such as a poncho, but usually it is a long garment that covers only the back half of the wearer, fastening around the neck. They were common in medieval Europe, especially when combined with a hood in the chaperon, and have had periodic...

, so the proper and correct term is "cape gooseberry". However reasonable this might be, it would seem to be an example of folk etymology or false etymology
False etymology
Folk etymology is change in a word or phrase over time resulting from the replacement of an unfamiliar form by a more familiar one. Unanalyzable borrowings from foreign languages, like asparagus, or old compounds such as samblind which have lost their iconic motivation are...

. It is not easy to support the more logical term from available literature, most of which ignores the question, the rest passing over the matter without giving any consideration to the concept of "cape" as an item of clothing. Among nineteenth century sources, one author's remark is typical: "...with double inaptness called the Cape Gooseberry...", implying that it is neither a gooseberry, nor from the Cape, but not suggesting the idea of any alternative interpretation. An earlier textbook explicitly says in part: "This species is called Cape Gooseberry, because it is cultivated as a fruit at the Cape of Good Hope." Although there is nothing preventing the use of the more logical nomenclature "cape gooseberry", it is hard to find cogent support for the idea that the original popular name was anything but "Cape gooseberry".

Not long after its introduction to South Africa, Physalis peruviana was introduced into Australia, New Zealand, and various Pacific islands.

In South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

, it is commercially cultivated; canned fruits and jam are staple commodities, often exported. It is also cultivated and naturalized on a small scale in Gabon
Gabon
Gabon , officially the Gabonese Republic is a state in west central Africa sharing borders with Equatorial Guinea to the northwest, Cameroon to the north, and with the Republic of the Congo curving around the east and south. The Gulf of Guinea, an arm of the Atlantic Ocean is to the west...

 and other parts of Central Africa
Central Africa
Central Africa is a core region of the African continent which includes Burundi, the Central African Republic, Chad, the Democratic Republic of the Congo, and Rwanda....

.

Soon after its adoption in the Cape of Good Hope
Cape of Good Hope
The Cape of Good Hope is a rocky headland on the Atlantic coast of the Cape Peninsula, South Africa.There is a misconception that the Cape of Good Hope is the southern tip of Africa, because it was once believed to be the dividing point between the Atlantic and Indian Oceans. In fact, the...

, it was carried to Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, where it was one of the few fresh fruits of the early settlers in New South Wales
New South Wales
New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

. It is also favored in New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

, where it is said "the housewife is sometimes embarrassed by the quantity of berries in the garden", and government agencies promote increased culinary use. It is also grown in India, and is called rasbhari (रसभरी) in Hindi.

The cape gooseberry is also grown in northeastern China, namely Heilongjiang
Heilongjiang
For the river known in Mandarin as Heilong Jiang, see Amur River' is a province of the People's Republic of China located in the northeastern part of the country. "Heilongjiang" literally means Black Dragon River, which is the Chinese name for the Amur. The one-character abbreviation is 黑...

 province, as a seasonal fruit harvested in late August through September. In Chinese pinyin
Pinyin
Pinyin is the official system to transcribe Chinese characters into the Roman alphabet in China, Malaysia, Singapore and Taiwan. It is also often used to teach Mandarin Chinese and spell Chinese names in foreign publications and used as an input method to enter Chinese characters into...

, the fruit is informally referred to as gu niao (菇茑), its Turkish name is altın çilek, and the scientific name is Physalis pubescens L or in Chinese pinyin mao suan jiang (毛酸浆).

It has been widely grown in Egypt
Egypt
Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

 for at least half a century, and is known locally as harankash حرنكش, a word of obscure origin, or as is-sitt il-mistahiya الست المستحية (the shy woman), a reference to the papery sheath. It makes an excellent substitute for apples, in crumble, for example.

Medical research, folk medicine and potential health value

Scientific studies of the cape gooseberry show its constituents, possibly polyphenol
Polyphenol
Polyphenols are a structural class of natural, synthetic, and semisynthetic organic chemicals characterized by the presence of large multiples of phenol structural units...

s and/or carotenoid
Carotenoid
Carotenoids are tetraterpenoid organic pigments that are naturally occurring in the chloroplasts and chromoplasts of plants and some other photosynthetic organisms like algae, some bacteria, and some types of fungus. Carotenoids can be synthesized fats and other basic organic metabolic building...

s, demonstrate anti-inflammatory and antioxidant
Antioxidant
An antioxidant is a molecule capable of inhibiting the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons or hydrogen from a substance to an oxidizing agent. Oxidation reactions can produce free radicals. In turn, these radicals can start chain reactions. When...

 properties.

The crude extract of the fruit-bearing plant has demonstrated antihepatoma and anti-inflammatory activities.

It has shown possible antidiabetes and antihypertension properties in vitro.

Some "withanolides" isolated from the plant have shown anticancer activity The unusual 5-chloride withanolide, 9, displayed significant cytotoxic activity.

Antihepatotoxic effects (in rats) against CCl4 were found.

Melatonin (N-acetyl-5-methoxytryptamine) has been found in the plant. Evidence, mainly from animal models, suggests melatonin administration may help to prevent or cure diseases associated with oxidative stress, including neurodegenerative diseases, which frequently occur during aging.

In folk medicine
Folk medicine
-Description:Refers to healing practices and ideas of body physiology and health preservation known to a limited segment of the population in a culture, transmitted informally as general knowledge, and practiced or applied by anyone in the culture having prior experience.All cultures and societies...

, Physalis peruviana has been used as a medicinal herb to treat cancer, leukemia, malaria, asthma, hepatitis, dermatitis and rheumatism. None of these diseases, however, is yet confirmed in human clinical in vivo studies as treatable by the cape gooseberry.

Pests and diseases

In South Africa, cutworm
Cutworm
Cutworms are not worms, biologically speaking, but caterpillars; they are moth larvae that hide under litter or soil during the day, coming out in the dark to feed on plants...

s are the most important of the many insect pests that attack the cape gooseberry in seedbeds; red spiders after plants have been established in the field; and the potato tuber moth if the cape gooseberry is in the vicinity of potato fields. Hares damage young plants, and birds eat the fruits if not repelled. In India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

, mites may cause defoliation. In Jamaica
Jamaica
Jamaica is an island nation of the Greater Antilles, in length, up to in width and 10,990 square kilometres in area. It is situated in the Caribbean Sea, about south of Cuba, and west of Hispaniola, the island harbouring the nation-states Haiti and the Dominican Republic...

, the leaves were suddenly riddled by what were apparently flea beetle
Flea beetle
Flea beetles is a general name applied to the small, jumping beetles of the leaf beetle family . They make up the tribe Alticini, which is a part of the subfamily Galerucinae, though they were historically classified as a subfamily in their own right...

s. In the Bahamas, whitefly
Whitefly
The whiteflies, comprising only the family Aleyrodidae, are small hemipterans. More than 1550 species have been described. Whiteflies typically feed on the underside of plant leaves.-Agricultural threat:...

 attacks on the very young plants and flea beetles on the flowering plants required control.

In South Africa, the most troublesome diseases are powdery mildew
Powdery mildew
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of fungi in the order Erysiphales. It is one of the easier diseases to spot, as its symptoms are quite distinctive. Infected plants display white powdery spots on the...

 and soft brown scale
Scale insect
The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects.-Ecology:...

. The plants are prone to root rots and viruses if on poorly-drained soil or if carried over to a second year. Therefore, farmers favor biennial plantings. Bacterial leaf spot (Xanthomonas
Xanthomonas
Xanthomonas is a genus of Proteobacteria, many of which cause plant diseases. Most varieties of Xanthomonas are available from the National Collection of Plant Pathogenic Bacteria in the United Kingdom and other international culture collections such as ICMP in New Zealand, CFBP in France, and...

spp.) occurs in Queensland
Queensland
Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...

. A strain of tobacco mosaic virus
Tobacco mosaic virus
Tobacco mosaic virus is a positive-sense single stranded RNA virus that infects plants, especially tobacco and other members of the family Solanaceae. The infection causes characteristic patterns on the leaves . TMV was the first virus to be discovered...

 may affect plants in India. In New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

, plants can be infected by Candidatus
Candidatus
Candidatus is in scientific classification a component of the taxonomic name for a bacterium that cannot be maintained in a Bacteriology Culture Collection. It is an interim taxonomic status for noncultivable organisms. An example would be "Candidatus Phytoplasma allocasuarinae"...

liberibacter
subsp. solanacearum.
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