Rocket, eruca,
or arugula (''Eruca sativa'') is an edible
annual plant
An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies. Globally, 6% of all plant species and 15% of herbaceous plants (excluding trees and shrubs) are ...
in the family
Brassicaceae
Brassicaceae () or (the older but equally valid) Cruciferae () is a medium-sized and economically important Family (biology), family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family. Most are herbaceous pla ...
used as a
leaf vegetable
Leaf vegetables, also called leafy greens, vegetable greens, or simply greens, are plant leaves eaten as a vegetable, sometimes accompanied by their petioles and shoots, if tender. Leaf vegetables eaten raw in a salad can be called salad gre ...
for its fresh, tart, bitter, and peppery flavor. Its other common names include salad rocket and garden rocket
[Flora of NW Europe]
''Eruca vesicaria''
(in the UK, Australia, South Africa, Ireland, and New Zealand),
as well as colewort, roquette, ruchetta, rucola, rucoli, and rugula. Native to the
Mediterranean region, it is widely popular as a
salad vegetable.
[Med-Checklist]
''Eruca sativa''.
/ref>[Blamey, M. & Grey-Wilson, C. (1989). ''Flora of Britain and Northern Europe''. .]
Some botanists consider it a subspecies
In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
of ''Eruca vesicaria
''Eruca vesicaria'' is a species of '' Eruca'' native to Spain, Morocco, and Algeria.
Some botanists consider ''Eruca vesicaria'' and '' E. sativa'' conspecific.Flora of NW Europe''Eruca vesicaria'' However, they are different in many morphologi ...
''. However, they are different in many morphological aspects such as sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106
Etymology
The term ''sepalum'' ...
persistence, silique
A silique or siliqua (plural ''siliques'' or ''siliquae'') is a type of fruit (seed capsule) having two fused carpels with the length being more than three times the width. When the length is less than three times the width of the dried fruit ...
shape, and habit. Most importantly, they do not hybrid freely with each other as there is partial reproductive isolation
The mechanisms of reproductive isolation are a collection of evolutionary mechanisms, ethology, behaviors and physiology, physiological processes critical for speciation. They prevent members of different species from producing offspring, or ensu ...
between them. 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 ...
has accepted ''Eruca sativa'' as a distinct species.
Description
''Eruca sativa'' is an annual plant
An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies. Globally, 6% of all plant species and 15% of herbaceous plants (excluding trees and shrubs) are ...
growing to in height. The 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 ...
leaves are deeply lobed with four to ten small, lateral lobes and a large terminal lobe. 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 are in diameter, arranged in a corymb
Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are borne on longer pedicels than the inner, bringing all flowers up to a common level. A corymb has a flattish top with a superficial re ...
, with the typical Brassicaceae flower structure. The petals are creamy white with purple veins, and the stamens are yellow. The fruit is a siliqua
The siliqua (. siliquas or siliquae) is the modern namegiven without any ancient evidence to confirm the designationto small, thin, Roman silver coins produced in the 4th century and later. When the coins were in circulation, the Latin word wa ...
(pod) long with an apical beak, containing several seeds. The species has a chromosome number
Ploidy () is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes. Here ''sets of chromosomes'' refers to the number of maternal and paternal chromosome copies, ...
of 2n = 22.[Huxley, A., ed. (1992). ''New RHS Dictionary of Gardening''. Macmillan .]
Names
''Sativa
Sativa, sativus, and sativum are Latin botanical adjectives meaning '' cultivated''. It is often associated botanically with plants that promote good health and used to designate certain seed-grown domestic crops.
Usage
''Sativa'' (ending in -a) ...
'' is from ''satum'', meaning "to sow", indicating that the seeds of the plant were sown in gardens.
The English common name ''rocket'' derives from French ''roquette'', itself a borrowing from Italian ''ruchetta'', a diminutive of ''ruca'', from the Latin word ''eruca''.['']Oxford English Dictionary
The ''Oxford English Dictionary'' (''OED'') is the principal historical dictionary of the English language, published by Oxford University Press (OUP), a University of Oxford publishing house. The dictionary, which published its first editio ...
''
"Arugula" (), the common name now widespread in the United States and Canada, entered American English from a nonstandard dialect of Italian. The standard Italian word is "rucola". The ''Oxford English Dictionary'' dates the first known appearance of "arugula" in American English to a 1960 article in ''The New York Times
''The New York Times'' (''NYT'') is an American daily newspaper based in New York City. ''The New York Times'' covers domestic, national, and international news, and publishes opinion pieces, investigative reports, and reviews. As one of ...
'' by food editor and prolific cookbook writer, Craig Claiborne
Craig Claiborne (September 4, 1920 January 22, 2000) was an American restaurant critic, food journalist and book author. A long-time food editor and restaurant critic for ''The New York Times'', he was also the author of numerous cookbooks ...
.
Similarly named plants
Rocket is sometimes conflated with ''Diplotaxis tenuifolia
''Diplotaxis tenuifolia'' is a species of flowering plant in the mustard family known by the common name perennial wall-rocket. It is native to Europe and western Asia, where it grows on disturbed ground and roadside habitat, roadsides, and it ca ...
'', known as 'perennial wall rocket', another plant of the family Brassicaceae that is used in the same manner.
Species of ''Barbarea
''Barbarea'' (winter cress or yellow rocket) is a genus of about 22 species of flowering plants in the family Brassicaceae, native to temperate regions of the Northern Hemisphere, with the highest species diversity in southern Europe and southwes ...
'' may be known as 'yellow rocket'.
''Brassica oleracea
''Brassica oleracea'', also known as wild cabbage in its uncultivated form, is a plant of the family Brassicaceae. The species originated from feral populations of related plants in the Eastern Mediterranean, where it was most likely first cultiv ...
'' may also be known by the common name 'colewort'.
Ecology
''Eruca sativa'' is native to southern Europe, North Africa and the Middle East. As an invasive species arugula is widespread but scattered though is prolific and noxious in the Sonora desert of Arizona and California.
The species typically grows on dry, disturbed ground
In ecology, a disturbance is a change in environmental conditions that causes a pronounced change in an ecosystem. Disturbances often act quickly and with great effect, to alter the physical structure or arrangement of biotic and abiotic element ...
. It is a source of food for the larva
A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase ...
e of some moth species, including the garden carpet
The garden carpet (''Xanthorhoe fluctuata'') is a moth of the family Geometridae. It is an abundant and familiar species across its huge range which covers the whole Palearctic region from Ireland to Japan and including the Near East and North Af ...
. Its roots are susceptible to nematode
The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (h ...
infestation.
Cultivation
Grown as an edible and popular herb in Italy since Roman
Roman or Romans most often refers to:
*Rome, the capital city of Italy
*Ancient Rome, Roman civilization from 8th century BC to 5th century AD
*Roman people, the people of Roman civilization
*Epistle to the Romans, shortened to Romans, a letter w ...
times, arugula was mentioned by various ancient Roman authors as an aphrodisiac
An aphrodisiac is a substance that increases libido, sexual desire, sexual attraction, sexual pleasure, or sexual behavior. These substances range from a variety of plants, spices, and foods to synthetic chemicals. Natural aphrodisiacs, such as ...
, for example in a poem long ascribed to the first-century poet Virgil
Publius Vergilius Maro (; 15 October 70 BC21 September 19 BC), usually called Virgil or Vergil ( ) in English, was an ancient Rome, ancient Roman poet of the Augustan literature (ancient Rome), Augustan period. He composed three of the most fa ...
, ''Moretum
Moretum is an herb cheese spread that the Ancient Romans ate with bread. A typical moretum was made of herbs, cheese (typically ricotta), salt, oil, and vinegar. Optionally, different kinds of nuts could be added. The ingredients were crushed t ...
'', which contains the line: "''et Venerem revocans eruca morantem''" ("and the rocket, which revives drowsy Venus exual desire), and in the Ars Amatoria
The (''The Art of Love'') is an instructional elegy series in three books by the ancient Roman poet Ovid. It was written in 2 AD.
Content
Book one of was written to show a man how to find a woman. In book two, Ovid shows how to keep her. These ...
of Ovid
Publius Ovidius Naso (; 20 March 43 BC – AD 17/18), known in English as Ovid ( ), was a Augustan literature (ancient Rome), Roman poet who lived during the reign of Augustus. He was a younger contemporary of Virgil and Horace, with whom he i ...
. Some writers assert that for this reason, during the Middle Ages, growing arugula was forbidden in monasteries. Nonetheless, the plant was listed in a decree
A decree is a law, legal proclamation, usually issued by a head of state, judge, monarch, royal figure, or other relevant Authority, authorities, according to certain procedures. These procedures are usually defined by the constitution, Legislativ ...
by Charlemagne
Charlemagne ( ; 2 April 748 – 28 January 814) was List of Frankish kings, King of the Franks from 768, List of kings of the Lombards, King of the Lombards from 774, and Holy Roman Emperor, Emperor of what is now known as the Carolingian ...
as among the 63 pot herbs suitable for growing in gardens. Gillian Riley, author of the ''Oxford Companion to Italian Food'', states that because of its reputation as a sexual stimulant, it was "prudently mixed with lettuce, which was the opposite" (i.e., calming or even soporific). Riley continues, "nowadays rocket is enjoyed innocently in mixed salads, to which it adds a pleasing pungency", although Norman Douglas
George Norman Douglas (8 December 1868 – 7 February 1952) was a British writer, now best known for his 1917 novel ''South Wind''. His travel books, such as ''Old Calabria'' (1915), were also appreciated for the quality of their writing.
...
insisted, "Salad rocket is certainly a stimulant".
The plant was traditionally collected in the wild or grown in home gardens along with herbs, such as parsley and basil. Arugula now is grown commercially in many places and is available in supermarkets and farmers markets worldwide. It now is naturalized
Naturalization (or naturalisation) is the legal act or process by which a non-national of a country acquires the nationality of that country after birth. The definition of naturalization by the International Organization for Migration of the ...
as a wild plant away from its native range in temperate regions around the world, including northern Europe and North America.[USDA Plants Profile]
''Eruca vesicaria'' subsp. ''sativa''
/ref> In India, the mature seeds are known as "Gargeer". This is the same name used in Arabic, ('), but used in Arab countries this name is used for the fresh leaves of the plant.
Mild frost conditions hinder the plant's growth and turn the green leaves to red. If the weather is warm plants mature to full size in 40 to 50 days.
Uses
Nutrition
Raw arugula is 92% water, 4% carbohydrates, 2.5% protein, and contains a negligible amount of fat. A reference serving provides only of food energy
Food energy is chemical energy that animals and humans derive from food to sustain their metabolism and muscular activity.
Most animals derive most of their energy from aerobic respiration, namely combining the carbohydrates, fats, and protein ...
. It is a rich source (20% or more of the Daily Value, DV) of folate
Folate, also known as vitamin B9 and folacin, is one of the B vitamins. Manufactured folic acid, which is converted into folate by the body, is used as a dietary supplement and in food fortification as it is more stable during processing and ...
and vitamin K. Arugula is also a good source (10–19% of DV) of vitamin A, vitamin C, and the dietary minerals calcium
Calcium is a chemical element; it has symbol Ca and atomic number 20. As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air. Its physical and chemical properties are most similar to it ...
, magnesium
Magnesium is a chemical element; it has Symbol (chemistry), symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 ...
, and manganese
Manganese is a chemical element; it has Symbol (chemistry), symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese was first isolated in the 1770s. It is a transition m ...
. It also includes potassium
Potassium is a chemical element; it has Symbol (chemistry), symbol K (from Neo-Latin ) and atomic number19. It is a silvery white metal that is soft enough to easily cut with a knife. Potassium metal reacts rapidly with atmospheric oxygen to ...
.
Arugula is generally not allergenic
An allergen is an otherwise harmless substance that triggers an allergic reaction in sensitive individuals by stimulating an immune response.
In technical terms, an allergen is an antigen that is capable of stimulating a type-I hypersensitivity ...
.
Culinary
The leaves, flowers, young seed pods, and mature seeds are all edible.
Since Roman times
In modern historiography, ancient Rome is the Roman civilisation from the founding of the Italian city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingd ...
in Italy, raw arugula has been added to salads. It often is added as a garnish to a pizza
Pizza is an Italian cuisine, Italian, specifically Neapolitan cuisine, Neapolitan, dish typically consisting of a flat base of Leavening agent, leavened wheat-based dough topped with tomato, cheese, and other ingredients, baked at a high t ...
at the end of or just after baking. In Apulia
Apulia ( ), also known by its Italian language, Italian name Puglia (), is a Regions of Italy, region of Italy, located in the Southern Italy, southern peninsular section of the country, bordering the Adriatic Sea to the east, the Strait of Ot ...
, in southern Italy, arugula is cooked to make the pasta dish "cavatiéddi", "in which large amounts of coarsely chopped rocket are added to pasta seasoned with a homemade reduced tomato sauce and pecorino
Pecorino is an Italian hard cheese produced from sheep's milk. The name derives from , which means ' sheep' in Italian.
Overview
Of the six main varieties of pecorino, all of which have protected designation of origin (PDO) status under ...
",[Reilly, ''The Oxford Companion to Italian Food'', p. 446] as well as in many recipes in which it is chopped and added to sauces and cooked dishes or in a sauce (made by frying it in olive oil with garlic). It also is used as a condiment for cold meats and fish. Throughout Italy, it is used as a salad with tomatoes and with burrata
Burrata () is an Italian cow's milk (occasionally buffalo milk) cheese made from mozzarella and cream. The outer casing is solid cheese, while the inside contains and clotted cream, giving it an unusual, soft texture. It is a speciality of ...
, bocconcini, buffalo, or mozzarella cheese. In Rome, "rucola" is used in "straccetti", a dish of thin slices of beef with raw arugula and Parmesan cheese.
In Turkey, similarly, the plant is eaten raw as a side dish or salad with fish or is served with a sauce of extra virgin olive oil and lemon juice.
In Slovenia, arugula often is combined with boiled potatoes or used in a soup.
In West Asia, Pakistan, and northern India, ''Eruca'' seeds are pressed to make taramira oil, used in pickling and (after aging to remove acridity) as a salad or cooking oil. The seed cake is also used as animal feed.
From about the 1990s arugula has become more popular in America, especially in trendier restaurants and in urban areas.
References
External links
Jeane Osnos, "The most political vegetables: A whirlwind tour of the edible crucifers," ''The Botanist in the Kitchen'', November 20, 2012.
How arugula joined broccoli (and lattes) as supposed markers for big-government liberalism.
Joel Denker, "The 'Lascivious' Leaf: The Allure of Arugula," ''Food in the 'Hood'' (published August 11, 2012)
, in
The Intowner, Serving Washington, D. C. since 1968
'.
Ezra Klein, "Arugula", ''The American Prospect'', October 7, 2008.
John Schwenkler, "Eating arugula has become a political act: Conservative thinker is branded a closet liberal based on the food he eats," ''Earth Matters'', MNN (Mother Nature Network), March 2009.
Mr. Schwenkler's article originally appeared in '' Plenty'' magazine in October 2008.
David Kamp, ''The United States of Arugula: How We Became a Gourmet Nation'', New York: Clarkson Potter (2006).
{{Authority control
Brassicaceae
Leaf vegetables
Taxa named by Carl Linnaeus
Plants described in 1753