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''Luffa aegyptiaca'', the sponge gourd, Egyptian cucumber or Vietnamese luffa, is an
annual Annual may refer to: * Annual publication, periodical publications appearing regularly once per year **Yearbook ** Literary annual * Annual plant * Annual report * Annual giving * Annual, Morocco, a settlement in northeastern Morocco * Annuals (b ...
species of
vine A vine (Latin ''vīnea'' "grapevine", "vineyard", from ''vīnum'' "wine") is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas or runners. The word ''vine'' can also refer to such stems or runners themselv ...
cultivated for its fruit, native to
South South is one of the cardinal directions or Points of the compass, compass points. The direction is the opposite of north and is perpendicular to both east and west. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Pro ...
and
Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consistin ...
.


Description

The three-lobed
leaves A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...
are wide. The fruit, approximately long and maturing to brown, resembles a
cucumber Cucumber (''Cucumis sativus'') is a widely-cultivated Vine#Horticultural climbing plants, creeping vine plant in the Cucurbitaceae family that bears usually cylindrical Fruit, fruits, which are used as culinary vegetables.
in shape and size.


Etymology

The synonymous botanical
specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
"''aegyptiaca''" was given to this plant in the 16th century when European botanists were introduced to the plant from its cultivation in Egypt. In the European botanical literature, the plant was first described by
Johann Veslingius Johann Vesling (Latin: Veslingius) (1598 – 30 August 1649) was a German anatomist and botanist from Minden, Westphalia. He published a major illustrated work on human anatomy ''Syntagma Anatomicum'' (1641). Life and work Vesling was born i ...
in 1638, who named it "Egyptian cucumber". Veslingius also introduced the name "Luffa".


Cultivation

Luffa has been cultivated throughout Asia for centuries for use as a household cleaning agent and is now, due to the gently abrasive quality of the natural fibers, a popular exfoliating agent in the eco-friendly cosmetic industry. Owing to its striking yellow flowers, the plant is occasionally grown as an ornamental. It requires much heat and much water to thrive. However, ''Luffa aegyptiaca'' can be cultivated in temperate climates. Research from North Carolina suggests that commercial production of luffa in the United States could be economically viable. Techniques that contribute to success in growing luffa include using black mulch to warm soil temperatures and transplants to increase the germination rate and extend the growing season. Narrow spacing may result in poorer quality sponges. It is best grown with a trellis support.


Cultivars in North America

According to researchers in Florida, common cultivars for ''Luffa aegyptiaca'' include Smooth Boy, Smooth Beauty, and South Winner. Many other cultivars were also mentioned in the Vegetable Cultivar Description for North America List 24, 1999: * Ba Leng Gua (ZWRM 135).—Parentage: from China. Characteristics: low yield of sponges. * Fletcher.—Breeder: DeCourley, Missouri. Characteristics: high yield of high-quality sponges with 100 × 400-mm size. * Hollar Luffa (13204).—Vendor: Hollar & Co. Characteristics: moderate to high yield of high-quality sponges with 97 × 428-mm size. * Leng Si Gua (ZWRM 133).—Parentage: from China. Characteristics: high yield of moderate-quality sponges with 60 × 350-mm size. * Lockhardt (Walters 484).—Vendor: Lockhardt Seeds. Characteristics: high yield of moderate-quality sponges with 79 × 489-mm size. * Orol Ledden Luffa.—Vendor: Orol Ledden & Sons. Characteristics: moderate to high yield of high-quality sponges with 98 × 429-mm size. * Pang Si Gua (ZWRM 134).—Parentage: from China. Characteristics: moderate yield of moderate-quality sponges with 100 × 430-mm size. * Peace Luffa.—Vendor: Peace Seeds. Characteristics: moderate yield of high quality sponges with 85 × 420-mm size, late flowering. * Pusa Chikni.—Parentage: from India. Characteristics: attractive fruit, eaten immature. Martin’s Vegetables for the Hot, Humid Tropics, 1979. * Qing Pi Chang (ZWRM 138).—Parentage: from China. Characteristics: high yield of moderate-quality sponges with 65 × 595-mm size. * Quan Zhou Chang Tiao Gua (ZWRM 141).—Parentage: from China. Characteristics: high yield of moderate, high-quality sponges with 50 × 180-mm size. * Richters Luffa (S3795).—Vendor: Otto Richter and Sons Ltd. Characteristics: moderate to high yield of high-quality sponges with 98 × 431-mm size. * Shi Ting Da Quing Pi (ZWRM 137).—Parentage: from China. Characteristics: high yield of moderate quality sponges with 60 × 540-mm size. * Smooth Short Luffa.—Vendor: Seed Saver’s Exchange. Characteristics: fruit short, cylindrical, eaten immature (at 6” long), 90-day maturity. 1981. * Sunrise (Walters 401).—Characteristics: moderate to high yield of moderate-quality sponges with 78 × 495-mm size. * USA Luffa (Guatemala).—Vendor: USA Luffa Inc. Characteristics: moderate to high yield of moderate-quality sponges with 72 × 464- mm size. * Xiang Si Gua (ZWRM 136).—Parentage: from China. Characteristics: low yield of moderate-quality sponges with 75 × 315-mm size.


Uses

The young fruit is eaten as a vegetable and is commonly grown for that purpose in tropical Asia. Unlike the young fruit, the fully ripened fruit is strongly fibrous and inedible, and is used to make scrubbing bath sponges. Due to the use as a scrubbing sponge, it is also known by the common names dishrag gourd, rag gourd, sponge gourd, and vegetable-sponge. It is also called smooth luffa to distinguish it from the ridged luffa (''
Luffa acutangula ''Luffa acutangula'' is a Cucurbitaceae, cucurbitaceous vine that is commercially grown for its unripe fruits as a vegetable. Mature fruits are used as natural cleaning sponges. Its fruit slightly resembles a cucumber or zucchini with ridges. It ...
''), which is used for the same purposes. The young shoots, flowers and leaves can be cooked, and the mature seeds can be roasted for consumption. An edible oil can be extracted from the seeds. The resulting oil meal can be fed to
rabbits Rabbits, also known as bunnies or bunny rabbits, are small mammals in the family Leporidae (which also contains the hares) of the order Lagomorpha (which also contains the pikas). ''Oryctolagus cuniculus'' includes the European rabbit specie ...
and
catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, ...
, or used as a fertilizer.Heuzé V., Tran G., Lebas F., 2017. Luffa (Luffa aegyptiaca). Feedipedia, a programme by INRA, CIRAD, AFZ and FAO. https://www.feedipedia.org/node/626 Last updated on July 18, 2017, 10:53


In art

In Israel, ''Luffa aegyptiaca'' has been in use since the time of the Late Roman Empire. Young fruits were used for food. Mature fruits were used as bath sponges. ''Luffa aegyptiaca'' fruits were decorated for the first time in art of the Byzantine era in Israel only. The fruits were decorated on mosaics of churches and synagogues in Israel.


References


External links


''Luffa aegyptiaca'' at Floridata
* ttp://luffa.info/ Luffa.info: Info on growing and using ''Luffa cylindrica'' as a scrubbing spongebr>Anat Avital and Harry S. Paris, 2014, 'Cucurbits depicted in Byzantine mosaics from Israel, 350–600 CE', Annals of Botany 114: pp. 203-22
{{Authority control Cucurbitoideae Fruit vegetables Fiber plants Asian vegetables Taxa named by Philip Miller