Scientific classification
Kingdom Plantae
Subkingdom Tracheobionta
Superdivision Spermatophyta
Division Magnoliophyta
Order Violales
Family Cucurbitaceae
Subfamily Cucurbitoideae
Genus Cucurbita L.
Binomial nomenclature

Cucurbita (Latin for gourd) is a genus in the gourd family Cucurbitaceae native to and first cultivated in the Andes and Mesoamerica. The Cucurbita genus is an important source of human food, beverages, medicine, oil, and traditionally of detergent. Some Cucurbita species were brought to Europe after the discovery of America and are now used in many parts of the world. The plants, referred to as squash, pumpkin or gourd depending on species, variety, and local parlance, are grown for their edible fruits and seeds. Gourds, also called bottle-gourds, which are used as utensils or vessels, are native to Africa and belong to the genus Lagenaria, which is in the same family and subfamily as Cucurbita but in a different tribe.

There are five domesticated species: Cucurbita argyrosperma, C. ficifolia, C. ;maxima, C. moschata, and C. pepo. All of these species can be treated as winter squash because the full-grown fruits can be stored for months, except C. pepo which includes some varieties that are better used only as summer squash. There is no universal agreement on how to handle the taxonomy of the genus, with the number of species listed varying from 13 to 30. There is uncertainty as to the ancestry of some of the species that have been cultivated for millennia.

Most Cucurbita species are vines that grow several meters in length and have tendrils, but non-vining "bush" cultivars of C. pepo and C. maxima have been developed. The flowers are yellow or orange, and there are two types of flowers on a Cucurbita plant: the female flowers that produce the fruit and the male flowers that produce pollen. Many North and Central American species are visited by specialist bee pollinators, but other insects with more general feeding habits such as honey bees also visit. The fruits of the Cucurbita genus are good sources of several nutrients such as vitamin A, vitamin C, dietary fiber, niacin, folic acid, and iron, and like all plant products are free of cholesterol. The plants contain the toxins cucurbitin, cucurmosin, and cucurbitacin.

Cucurbita fruits have played a role in human culture for at least 2,000 years. They are often represented in Moche ceramics from Peru. After Christopher Columbus's arrival in the New World, paintings of squashes started to appear in Europe early in the sixteenth century. Among other uses, Cucurbita seeds have been employed in traditional medicine, and extracts are used in cosmetics for dry and sensitive skin. The fruits have many culinary uses including pumpkin pie, biscuits, bread, desserts, puddings, and soups. Pumpkins and other Cucurbita fruits are celebrated in festivals such as Halloween, pumpkin chucking, the Keene Pumpkin Fest, and flower and vegetable shows in many countries.

Description Edit

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Most Cucurbita species are climbing annual vines and are mesophytes, plants which require a more or less continuous water supply. The perennial species grow in tropical zones and are xerophytes, plants which tolerate dry conditions well. Growing 16 to 49 ft, the plant stem produces tendrils to help it climb adjacent plants and structures or along the ground. Most species do not readily root from the nodes; notable exceptions are Cucurbita ficifolia and the four cultivated mesophytes. The vine of the perennial Cucurbita can become semiwoody if left to grow. There is wide variation in size, shape, and color among Cucurbita fruits, and even within a single species. C. ficifolia is an exception to this, being highly uniform in appearance. The morphological differences in the species C. pepo and C. maxima are so vast that its various subspecies and cultivars have been misidentified as totally separate species.

The typical cultivated Cucurbita species has five-lobed or palmately divided leaves having long petioles with the leaves alternately arranged on the stem. The stems in some but not all species are angular. All of the above-ground parts may be hairy with various types of trichomes, which are hardened and sharp. Spring-like tendrils grow from each node and are branching in some species. There are male (staminate) and female (pistillate) flowers (unisexual flowers) on a single plant (monoecious), and these grow singly, appearing from the leaf axils. Flowers have five fused yellow to orange petals (the corolla) and a green bell-shaped calyx. Male flowers in Cucurbitaceae generally have five stamens, but in Cucurbita there are only three, and their anthers are joined together so that there appears to be one. Female flowers have thick pedicels, and an inferior ovary with 3–5 stigmas that each have two lobes. C. argyrosperma has ovate-cordate (heart-shaped) leaves and the corollas of its female flowers are larger than the male flowers. The shape of C. pepo leaves varies widely; its female flowers have a small calyx. C. moschata plants can have light or dense pubescence. The calyx of its male flowers is comparatively short. C. ficifolia leaves are slightly angular and have light pubescence. Its female flowers have noticeably larger corollas than the male flowers. The leaves of all four of these species may or may not have white spots on their leaves.

Botanists classify the Cucurbita fruit as a pepo, which is a special type of berry derived from an inferior ovary, with a thick outer wall or rind formed from hypanthium tissue fused to the exocarp. The fleshy interior is composed of mesocarp and endocarp. The term "pepo" is used primarily for Cucurbitaceae fruits, where this fruit type is common, but the fruits of Passiflora and Carica are sometimes considered pepos. Cucurbita fruits are large and fleshy. Seeds are attached to the ovary wall (parietal placentation) and not to the center. Seeds are large and fairly flat with an embryo which has two rather large cotyledons. Wild fruit specimens can be as small as 1.6 in, but certain domesticated specimens can weigh well over 660 lb. The current world record was set by Ron Wallace of Greene, Rhode Island with a 2,009 lb Atlantic Giant pumpkin.

Reproductive biologyEdit

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Every species of Cucurbita has 20 pairs of chromosomes. Many North and Central American species are visited by specialist pollinators in the apid tribe Eucerini, especially the genera Peponapis and Xenoglossa, and these squash bees can be crucial to the flowers producing fruit after pollination. Competitively grown specimens are often hand-pollinated to maximize the number of seeds in the fruit, which increases the fruit size (an effect called xenia); this pollination requires proper technique. Seedlessness is known to occur in certain cultivars of C. pepo.

File:Cucurbita maxima Zapallo Plomo semillería Costanzi - flowers detail (masculine) - male flower, some petals and 1 filament removed.jpg

The plant hormone ethylene promotes the production of female flowers. When a plant already has fruit, new female flowers are inhibited, and male flowers are more frequent, an effect that appears to be due to reduced natural ethylene production within the plant stem. Ethephon, a plant growth regulator product that is converted to ethylene after metabolism by the plant, can be used to increase fruit and seed production. Ethylene and the hormone auxin are key in fruit set and development. The most critical factors in flowering and fruit set are physiological, not climatic, factors. If a fruit is developing, then subsequent female flowers on the plant are less likely to mature, a phenomenon called "first-fruit dominance".

Gibberellin produced in the stamens is a plant hormone essential for the development of all parts of the male flowers, but the development of female flowers is not yet understood. Gibberellin is also involved in other developmental processes of plants such as seed and stem growth.

Germination and seedling growthEdit

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Seed germination in some species of Cucurbita has been directly linked to embryo axis weight and reserve protein. Maximum seed germination in C. moschata occurs 45 days after anthesis. Seed weight is at its maximum 75 days after germination. Some varieties of C. pepo germinate best with eight hours of sunlight daily and a planting depth of 0.47 in. Seeds planted deeper than 4.9 in are not likely to germinate. C. foetidissima seeds have a 90% germination rate in pH 8 soil. Plants younger than 19 days old are not able to sprout from the roots after removing the shoots. Over 90% of plants sprout after 29 days from planting.

High levels of pollen load are known to produce more seeds in fruits, faster and more likely seed germination, larger fruits, greater likelihood of fruit maturation, more plant biomass, and larger stems.> Various combinations of light and mineral nutrients have a significant effect during the various stages of plant growth. These effects vary significantly between the different species of Cucurbita. Phytate forms in seeds tissues as spherical crystalline intrusions in protein bodies called globoids. The nutrients in globoids are eventually used completely during seedling growth. Heavy metal contamination, including cadmium, has a significant negative impact on plant growth. Cucurbita plants grown in the spring tend to grow larger than those grown in the autumn.

Species Edit

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Cucurbita was formally described in 1753 in Linnaeus's Species Plantarum, which established modern botanical nomenclature. Cucurbita pepo is the type species of the genus. The Cucurbita digitata, C. foetidissima, C. galeotti, and C. pedatifolia species groups are xerophytes, arid zone perennials with storage roots; the remainder, including the five domesticated species, are all mesophytic annuals or short-life perennials with no storage roots. The five domesticated species are mostly isolated from each other by sterility barriers and have different physiological characteristics. Some cross pollinations can occur: C. pepo with C. argyrosperma and C. moschata; and C. maxima with C. moschata. Cross pollination does occur readily within the family Cucurbitaceae. The buffalo gourd (C. foetidissima), which does not taste good, has been used as an intermediary as it can be crossed with all the common Cucurbita.

Various taxonomic treatments have been proposed for Cucurbita, ranging from 13–30 species. In 1990, Michael Nee classified them into the following 13 species groups (27 species total), listed by group and alphabetically, with geographic origin:

The taxonomy by Nee closely matches the species groupings reported in a pair of studies by a botanical team led by Rhodes and Bemis in 1968 and 1970 based on statistical groupings of several phenotypic traits of 21 species. Seeds for studying additional species members were not available. Sixteen of the 21 species were grouped into five clusters with the remaining five being classified separately:

  • C. digitata, C. palmata, C. californica, C. cylindrata, C. cordata
  • C. martinezii, C. okeechobeensis, C. lundelliana
  • C. sororia, C. gracilior, C. palmeri; C. argyrosperma (reported as C. mixta) was considered close to the three previous species
  • C. maxima, C. andreana
  • C. pepo, C. texana
  • C. moschata, C. ficifolia, C. pedatifolia, C. foetidissima, and C. ecuadorensis were placed in their own four separate species groups as they were not considered significantly close to any of the other species studied.


The full phylogeny of this genus is unknown, and research is ongoing in 2014. The following cladogram of Cucurbita phylogeny is based upon a 2002 study of mitochondrial DNA by Sanjur et al.

Habitat and distribution Edit

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There are five domesticated species. Four of them, Cucurbita argyrosperma, C. ficifolia, C. moschata, and C. pepo, originated and were domesticated in Mesoamerica. For one of them, C. maxima, these events occurred in South America.

Within C. pepo, the pumpkins, scallops, and possibly crooknecks are ancient and were domesticated separately. The domesticated forms of C. pepo have larger fruits and larger yet fewer seeds. In a 1989 study on the origins and development of C. pepo, botanist Harry Paris suggested that the original wild specimen was a small round fruit and that the modern pumpkin is its direct descendant. He suggested that the crookneck, ornamental gourd, and scallop are early variants and that the acorn is a cross between the scallop and pumpkin.

Not as widespread as the other species, Cucurbita argyrosperma is found from Mexico to Nicaragua. It has large seeds that are high in oil and protein and was probably bred for its seeds. Its flesh is of poorer quality than that of C. moschata and C. pepo. It is found from sea level to as high as 5,900 feet in dry areas or areas with a defined rainy season. Seeds are sown in May and June, and fruit is harvested from October to December.

Cucurbita ficifolia and C. moschata were originally thought to be Asiatic in origin, but this has been disproven. The origin of C. ficifolia is Latin America, most likely southern Mexico, Central America, or the Andes. It grows at altitudes from 3300 feet to 9800 feet in areas with heavy rainfall. It does not hybridize well with the other cultivated species as it has significantly different enzymes and chromosomes.

Cucurbita maxima originated in South America over 4,000 years ago, probably in Argentina and Uruguay. The plants are sensitive to frost, prefer bright sunlight, and soil with a pH of 6.0 to 7.0. Cucurbita maxima did not start to spread into North America until after the arrival of Columbus. Varieties were in use by native peoples of the United States by the 16th century. Types of C. maxima include Triloba, Zapallito, Zipinka, Banana, Delicious, Hubbard, Marrow (C. maxima Marrow), Show, and Turban.

File:Cucurbita moschata Butternut 2012 G2.jpg

Cucurbita moschata is native to Latin America but the precise location of origin is uncertain. It has been present in Mexico, Belize, Guatemala, and Peru for 4,000–6,000 years and has spread to Bolivia, Ecuador, Panama, Puerto Rico, and Venezuela. This species is closely related to C. argyrosperma. A variety known as the Seminole Pumpkin has been cultivated in Florida since before the arrival of Columbus. Its leaves are 7 to 11 inches wide. It generally grows at low altitudes in hot climates with heavy rainfall, but some varieties have been found above 7200 feet. Groups of C. moschata include Cheese, Crookneck (C. moschata), and Bell.

Cucurbita pepo is one of the oldest, if not the oldest, domesticated species with the oldest known locations being Oaxaca, Mexico, 8,000–10,000 years ago, and Ocampo, Tamaulipas, Mexico, about 7,000 years ago. It is known to have appeared in Missouri, United States, at least 4,000 years ago. Debates about the origin of C. pepo have been on-going since at least 1857. There have traditionally been two opposing theories about its origin: 1) that it is a direct descendant of C. texana and 2) that C. texana is merely feral C. pepo. A more recent theory by botanist Thomas Andres in 1987 is that it is a descendant of C. fraterna and hybridized with C. texana, resulting in two distinct domestication events in two different areas: one in Mexico and one in the eastern United States, with C. fraterna and C. texana, respectively, as the ancestral species.C. pepo may have appeared in the Old World prior to moving from Mexico into South America. It is found from sea level to slightly above 6500 feet. Leaves have 3–5 lobes and are 20–35 cm wide. All the subspecies, varieties, and cultivars are conspecific and interfertile. In 1986 Paris proposed a taxonomy of C. pepo consisting of eight edible and cultivated groups based on their basic shape and color, which varies widely. All but a few C. pepo can be included in these groups. There is one non-edible cultivated variety: The following table showing C. pepo varieties includes Paris' eight edible groups and the one non-edible variety.

Cultivar group Botanical name Image Description
Acorn C. pepo var. turbinata 100px Winter squash, both a shrubby and creeping plant, obovoid or conical shape, pointed at the apex and with longitudinal grooves, thus resembling a spinning top, ex: Acorn squash
Cocozzelle C. pepo var. Ionga 100px Summer squash, long round slender fruit that is slightly bulbous at the apex, similar to fastigata, ex: Cocozelle von tripolis
Crookneck C. pepo var. torticollia (also torticollis) 100px Summer squash, shrubby plant, with yellow, golden, or white fruit which is long and curved at the end and generally has a verrucose (wart-covered) rind, ex: Yellow crookneck squash
Pumpkin C. pepo var. pepo
Winter squash, creeping plant, round, oblate, or oval shape and round or flat on the ends, ex: Pumpkin; includes C. pepo subsp. pepo var. styriaca, used for Styrian pumpkin seed oil
Scallop C. pepo var. clypeata; called C. melopepo by Linnaeus 100px Summer squash, prefers half-shrubby habitat, flattened or slightly discoidal shape, with undulations or equatorial edges, ex: Pattypan squash
Straightneck C. pepo var. recticollis 100px Summer squash, shrubby plant, with yellow or golden fruit and verrucose rind, similar to var. torticollia but a stem end that narrows, ex: Yellow summer squash
Vegetable marrow C. pepo var. fastigata 100px Summer and winter squashes, creeper traits and a semi-shrub, cream to dark green color, short round fruit with a slightly broad apex, ex: Spaghetti squash (a winter variety)
Zucchini C. pepo var. cylindrica 100px Summer squash, presently the most common group of cultivars, origin is recent (19th century), semi-shrubby, cylindrical fruit with a mostly consistent diameter, similar to fastigata, ex: Zucchini.
Ornamental gourds C. pepo var. ovifera 100px Non-edible, field squash closely related to C. texana, vine habitat, thin stems, small leaves, three sub-groups: C. pepo var. ovifera (egg-shaped, pear-shaped), C. pepo var. aurantia (orange color), and C. pepo var. verrucosa (round warty gourds), ornamental gourds found in Texas and called var. texana and ornamental gourds found outside of Texas (Illinois, Missouri, Arkansas, Oklahoma, and Louisiana) are called var. ozarkana

Nutrients Edit

Cucurbita have phytochemical constituents sch as alkaloids, flavonoids, and palmitic, plus oleic and linoleic acids. Animal and in vitro experiments suggest that pumpkins have anti-diabetic, antioxidant, anticarcinogenic, and anti-inflammatory pharmacological properties. Pumpkins and pumpkin seeds have high levels of crude protein, calcium, iron, potassium, phosphorus, magnesium, zinc, and beta-carotene. Cucurbita are good sources of vitamin A, vitamin C, potassium, dietary fiber, niacin, folic acid, and iron. They are free of fat and cholesterol.

Toxins Edit

Cucurbitin is an amino acid and a carboxy pyrrolidine that is found in raw Cucurbita seeds. Cucurbitin is an inhibitor of histidine decarboxylase, which is associated with inhibition of the biosynthesis of histamine, which in turn is responsible for the formation of the inflammatory response. Cucurbitin causes degenerative changes in the reproductive organs of parasitic flukes.

Cucurmosin is a ribosome inactivating protein found in the sarcocarp (flesh) and seed of Cucurbita, notably Cucurbita moschata. Cucurmosin is more toxic to cancer cells than healthy cells.

Cucurbitacin is a plant steroid poisonous to mammals found in wild Cucurbita in quantities sufficient to discourage herbivores. It is found each member of the Cucurbitaceae family. It has a bitter taste and ingesting too much can cause stomach cramps, diarrhea and even collapse. Because of this bitterness that is especially prevalent in wild Cucurbita, in parts of Mexico the flesh of the fruits is rubbed on a woman's breast to wean children. While the process of domestication has largely removed the bitterness from cultivated varieties, there are occasional reports of cucurbitacin getting into the human food supply and causing illnesses. Cucurbitacin is what makes wild Cucurbita and most ornamental gourds, with the exception of an occasional C. fraterna and C. sororia, bitter to taste. Cucurbitacin is also used as a lure in insect traps.

Pests and diseases Edit

Cucurbita species are used as food plants by the larvae of some Lepidoptera species, including Cabbage Moths, Hypercompe indecisa, and Turnip Moths.Cucurbita can be susceptible to the pest Bemisia argentifolii (silverleaf whitefly) as well as aphids (Aphididae), cucumber beetles (Acalymma vittatum and Diabrotica undecimpunctata howardi), squash bug (Anasa tristis), the squash vine borer (Melittia cucurbitae), and the twospotted spidermite (Tetranychus urticae). The squash bug causes major damage to plants because of its very toxic saliva. Cucurbits, which are all members of the family Cucurbitaceae, are susceptible to diseases such as bacterial wilt (Erwinia tracheiphila), anthracnose (Colletotrichum spp.), fusarium wilt (Fusarium spp.), phytophthora blight (Phytophthora spp. water molds), and powdery mildew (Erysiphe spp.). Defensive responses to viral, fungal, and bacterial leaf pathogens do not involve cucurbitacin.

Species in the genus Cucurbita are susceptible to some types of mosaic virus including: Cucumber mosaic virus (CMV), Papaya ringspot virus-cucurbit strain (PRSV), Squash mosaic virus (SqMV), Tobacco ringspot virus (TRSV),Watermelon mosaic virus (WMV), and Zucchini yellow mosaic virus (ZYMV). PRSV is the only one of these viruses that does not affect all cucurbits. SqMV and CMV are the most common viruses among cucurbits. Symptoms of these viruses show a high degree of similarity, which often results in laboratory investigation being needed to differentiate which one is affecting plants.

Production Edit

Squashes are primarily grown for the fresh food market. The Food and Agriculture Organization of the United Nations (FAO) reported that the ranking of the top five squash-producing countries was stable from 2005–2009. Those countries are: China, India, Russia, the United States, and Egypt. By 2012, Iran had moved into the 5th slot, with Egypt falling to 6th. The top 10 countries in terms of metric tons of squashes produced are:

Top ten squash producers — 2012
Country Production
(metric tons)
China 6,140,840
India 4,424,200
Russia 988,180
USA 778,630
Iran 695,600
Egypt 658,234
Mexico 522,388
Ukraine 516,900
Italy 508,075
Turkey 430,402
Top 10 total 15,663,449

The only other countries that rank in the top 20 where squashes are native are Cuba, which ranks 14th with 347,082 metric tons, and Argentina, which ranks 17th, with 326,900 metric tons. In addition to being the 4th largest producer of squashes in the world, the United States is the world's largest importer of squashes, importing 271,614 metric tons in 2011, 95% of that from Mexico. Within the United States, the states producing the largest amounts are Florida, New York, California, and North Carolina.

This is how Cucurbita compares to several other major Cucurbitaceae crops in terms of crop tonnage harvested:

Top ten cucumber producers — 2012
Country Production
(metric tons)
China 40,710,200
Iran 1,811,630
Turkey 1,739,190
Russia 1,161,870
USA 883,360
Ukraine 860,100
Spain 682,900
Egypt 631,408
Japan 587,800
Indonesia 547,141
Top 10 total 49,075,599
Top ten watermelon producers — 2012
Country Production
(metric tons)
China 56,649,725
Turkey 3,683,100
Iran 3,466,880
Brazil 1,870,400
USA 1,866,660
Egypt 1,637,090
Uzbekistan 1,182,400
Russia 1,151,580
Mexico 1,036,800
Algeria 946,200
Top 10 total 73,490,835

History and domestication Edit

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The ancestral species of the genus Cucurbita were present in the Americas before the arrival of humans, and are native to the New World. The likely center of origin is southern Mexico, spreading south into what is now known as Mesoamerica and north to what is now the southwestern United States. Evolutionarily speaking, the genus is relatively recent in origin, and no species within the genus is entirely genetically isolated. Cucurbita moschata can intercross with all the others, though the hybrid offspring may not themselves be fertile unless they become polyploid. The genus was part of the culture of almost every native peoples group from southern South America to southern Canada. Modern-day cultivated Cucurbita are not found in the wild. Genetic studies of the mitochondrial gene nad1 show there were at least six independent domestication events of Cucurbita separating domestic species from their wild ancestors.Species native to North America include C. digitata (calabazilla), and C. foetidissima (buffalo gourd), C. palmata (coyote melon), and C. pepo. Some species, such as C. digitata and C. ficifolia, are referred to as gourds. Gourds, also called bottle-gourds, which are used as utensils or vessels, belong to the genus Lagenaria and are native to Africa. Lagenaria are in the same family and subfamily as Cucurbita but in a different tribe.

The earliest known evidence of the domestication of Cucurbita dates back 8,000–10,000 years ago, predating the domestication of other crops such as maize and beans in the region by about 4,000 years. This evidence was found in the Guilá Naquitz cave in Oaxaca, Mexico, during a series of excavations in the 1960s and 1970s, possibly beginning in 1959. Later, more accurate, dating using accelerator mass spectrometers provided more specific dates. Solid evidence of domesticated Cucurbita pepo was found in the Guilá Naquitz cave in the form of increasing rind thickness and larger peduncles in the newer stratification layers of the cave. By circa 8,000 years BP the C. pepo peduncles found are consistently more than 0.39 in thick. Wild Cucurbita peduncles are always below this 10 mm barrier. Changes in fruit shape and color indicate that intentional breeding of C. pepo had occurred by no later than 8,000 years BP. During the same time frame, average rind thickness increased from 0.033 in to 0.045 in.

The process of domesticating the cucurbita (squashes) took place over 5,000–6,500 years in Mesoamerica. Squash was domesticated first, followed by maize and then beans, becoming part of the Three Sisters agricultural system of companion planting. The English word "squash" derives from askutasquash (a green thing eaten raw), a word from the Narragansett language, which was documented by Roger Williams, the founder of Rhode Island, in his 1643 publication A Key Into the Language of America. Similar words for squash exist in related languages of the Algonquian family.

In human culture Edit

Art, music, and literature Edit


Squash, along with maize and beans, has been depicted in the art work of the native peoples of the Americas for at least 2,000 years. For example, cucurbita are often represented in Moche ceramics.

Though native to the western hemisphere, Cucurbita began to spread to other parts of the world after Christopher Columbus's arrival in the New World in 1492. Until recently, the earliest known depictions of this genus in Europe was of Cucurbita pepo in De Historia Stirpium Commentarii Insignes in 1542 by the German botanist Leonhart Fuchs, but in 1992, two paintings, one of C. pepo and one of C. maxima, painted between 1515 and 1518, were identified in festoons at Villa Farnesina in Rome. Also, in 2001 depictions of this genus were identified in Grandes Heures of Anne of Brittany (Les Grandes Heures d'Anne de Bretagne), a French devotional book, an illuminated manuscript, created between 1503 and 1508. This book contains an illustration known as Quegourdes de turquie, which was identified by cucurbit specialists as C. pepo subsp. texana in 2006.

In 1952, Stanley Smith Master, using the pen name Edrich Siebert, wrote "The Marrow Song (Oh what a beauty!)" to a tune in 6/8 time. It became a popular hit in Australia in 1973, and was revived by the Wurzels in Britain on their 2003 album Cutler of the West. John Greenleaf Whittier wrote a poem entitled The Pumpkin in 1850."The Great Pumpkin" is a fictional holiday figure in the comic strip Peanuts by Charles M. Schu.

Medicinal uses Edit

Cucurbita seeds were used in traditional Chinese medicine to treat the parasitic diseases ascariasis and schistosomiasis. Cucurbita extracts are used in cosmetics for dry and sensitive skin. C. ficifolia is used to make soft and mildly alcoholic drinks, and high doses of C. ficifolia have been shown to be successful in reducing blood sugar levels. The fruit pulp of some species, such as C. foetidissima, can be used as a soap or detergent. Cucurbita fruits are an important source for humans of carotenoids, vitamin A, and rhodopsin, all of which are important to eye health.

Culinary uses Edit

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The Cucurbitaceae family has the largest number of species used as human food of any plant family. Cucurbita is one of the most important of those, with the various species being prepared and eaten in many ways. Although the stems and skins tend to be more bitter than the rest of the flesh, the fruits and seeds of cultivated varieties are quite edible and need little or no preparation. In addition, the flowers and young leaves and shoot tips can be consumed. The seeds and fruits of most varieties can be stored for long periods of time. In particular, the sweet-tasting winter varieties store well due to their thick, inedible skins. Summer squash have a thin, edible skin. The seeds of both types can be ground into a flour or meal, roasted, eaten raw, made into pumpkin seed oil, or otherwise prepared. Buffalo gourd oil is made from Cucurbita foetidissima. Long before European contact, Cucurbita had been a major food source for the native peoples of the Americas, and the species became an important food for European settlers, including the Pilgrims, even featuring at the first Thanksgiving. Commercially made pumpkin pie mix is most often made from varieties of C. moschata; 'Libby's Select' uses the Select Dickinson Pumpkin variety of C. moschata for its canned pumpkin. Other foods that can be made using members of this genus include biscuits, bread, cheesecake, desserts, donuts, granola, ice cream, lasagna dishes, pancakes, pudding, pumpkin butter, salads, soups, and stuffing. The xerophytic species are proving useful in the search for nutritious foods that grow well in arid regions.

Festivals Edit

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Cucurbita fruits including pumpkins and marrows are celebrated in festivals in countries such as Argentina, Bolivia, Britain, Canada, France, Germany, Italy, Japan, Peru, Portugal, Spain, Switzerland, and the United States. Argentina holds an annual nation-wide pumpkin festival Fiesta Nacional del Zapallo ("Squashes and Pumpkins National Fest"), in Ceres, Santa Fe, at which on the last day they choose the Reina Nacional del Zapallo (the "National Queen of the Pumpkin"). In Portugal the Festival da Abóbora de Lourinhã e Atalaia ("Squashes and Pumpkins Festival in Lourinhã and Atalaia") is held in Lourinhã city, called the Capital Nacional da Abóbora (the "National Capital of Squashes and Pumpkins"). Ludwigsburg, Germany annually hosts the world's largest pumpkin festival. In Britain, for example, a giant marrow (zucchini) weighing 119lbs 12oz was displayed in the Harrogate Autumn Flower Show in 2012. In the USA, pumpkin chucking is practiced competitively, with machines such as trebuchets and air cannons designed to throw intact pumpkins as far as possible. The Keene Pumpkin Fest is held annually in New Hampshire; in 2013 it held the world record for the most jack-o-lanterns lit in one place, 30,581 on October 19, 2013.

Halloween is widely celebrated with jack-o-lanterns made of large orange pumpkins carved with ghoulish faces, illuminated from inside with candles. The pumpkins used for jack-o-lanterns are C. pepo, not to be confused with the ones typically used for pumpkin pie in the United States, which are C. moschata. Kew Gardens marked Halloween in 2013 with a display of pumpkins, including a towering pyramid made of many varieties of squash, in the Waterlily House during its "IncrEdibles" festival.

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