What is the scienticfic name of Walnut?
A walnut is the nut of any tree of the genus Juglans (Family Juglandaceae), particularly the Persian or English walnut, Juglans regia. A walnut is the edible seed of a drupe, and thus not a true botanical nut. It is commonly consumed as a nut. After full ripening for its edible seed when the shell has been discarded, it is used as a garnish or ...
Is walnut the same as black walnut?
The short answer is the English walnut is mostly grown for food while the black walnut is grown for wood. However, there are many more differences between the two. It is important to understand that English walnuts come from the juglans regia tree while the black walnut is from the juglans nigra tree.
What tree do walnuts come from?
Yes, walnuts do grow on trees ! The trees are called Juglans regia, and are incredibly common nowadays, being grown commercially. Along with pecans, walnuts are commonly found in snacks or used as a garnish. These trees are very tall, reaching up to 35 m/120 ft in height, with a very large, wide branches that take up just as much space.
What is the scientific name for the American walnut tree?
American Walnut. Also known as: Black Walnut, Black Hickory. Scientific: juglans nigra. Janka Hardness: 1,010. Elastic Modulus: 11.59 GPa. One of the most highly species in North America. American Walnut, with it's deep rich brown tones and spectacular grain patterns is regarded by many American craftsmen as on of the best woods to work with.
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What family is walnut in?
Walnut familyWalnut Tree / FamilyThe Juglandaceae are a plant family known as the walnut family. They are trees, or sometimes shrubs, in the order Fagales. Members of this family are native to the Americas, Eurasia, and Southeast Asia. Wikipedia
What classification is a walnut?
DicotyledonsWalnut Tree / ClassMagnoliopsida is a valid botanical name for a class of flowering plants. By definition the class will include the family Magnoliaceae, but its circumscription can otherwise vary, being more inclusive or less inclusive depending upon the classification system being discussed. Wikipedia
What is the genus and species of walnut?
Walnut TreeEnglish walnut / GenusWalnut trees are any species of tree in the plant genus Juglans, the type genus of the family Juglandaceae, the seeds of which are referred to as walnuts. Wikipedia
What is a walnut called a walnut?
Walnut is the common name for any of the large, deciduous trees comprising the genus Juglans of the flowering plant family Juglandaceae, which is known as the walnut family. Walnut is also the name for the nuts or edible, ridged seed of these trees, or for their hardwood.
Is walnut good for brain?
Substantial evidence from animal and human studies suggests that dietary consumption of walnuts (1–2 oz per day) can improve cognitive function and also reduce the risk of other diseases, such as cardiovascular disease, depression, and type 2 diabetes, which are risk factors for the development of dementia.
What are uses of walnut?
13 Proven Health Benefits of WalnutsRich in Antioxidants. Share on Pinterest. ... Super Plant Source of Omega-3s. ... May Decrease Inflammation. ... Promotes a Healthy Gut. ... May Reduce Risk of Some Cancers. ... Supports Weight Control. ... May Help Manage Type 2 Diabetes and Lower Your Risk. ... May Help Lower Blood Pressure.More items...•
Is walnut good for pregnancy?
Any nut will do, but walnuts are particularly beneficial because they contain omega-3 fatty acids, a type of fat that's commonly found in fish and helps with your baby's brain development. If you're a vegetarian or don't eat fish, it's important to eat other foods that contain omega-3s such as walnuts.
Is Akhrot and walnut same?
Shree WALNUT (AKHROT) 1KG Walnuts (1 kg) Juglans Regia Or walnut fruit is wrinkly, globe shaped nut, also available in raw and roasted, and salted and unsalted, mostly looks like the brain which is widely known as 'Akhrot' in India. The fruit and seed of the walnut are enclosed in a thick, edible husk.
Are walnuts a fruit?
Most nuts, such as almonds, walnuts, and cashews, are botanically defined as seeds rather than fruit. Yet, a handful of true nuts like chestnuts and hazelnuts are technically fruits. The lone exception is peanuts, which are a legume.
How do you eat walnuts?
0:491:50The Best Way to Eat Walnuts - YouTubeYouTubeStart of suggested clipEnd of suggested clipOne of the finest methods to consume walnuts is to soak them overnight. And then eat them the next.MoreOne of the finest methods to consume walnuts is to soak them overnight. And then eat them the next. Morning. Take two to four slices of walnuts. And soak them overnight in a cup of water.
Can I eat walnuts from my tree?
A pitted shell encases a fibrous, leather sheath that splits as the nuts begin to ripen in the fall and indicates that walnut tree harvesting is nigh. Once you are done harvesting the walnuts, you can eat them right away, but keep in mind they won't be quite like those purchased ones at the grocers.
Can dogs eat walnut?
English walnuts are generally safe for dogs to eat, outside of the considerations mentioned above. But black walnuts (a type of walnut not commonly eaten by people) are toxic for dogs. The symptoms of toxicity are vomiting, muscle weakness and tremors, a high temperature, and seizures.
What part of the walnut do we eat?
The nut is the fruit of the walnut, of rounded or ovoid shape, with a hard wrinkled shell of a reddish-brown colour. The edible part inside it has a particular sweet taste. In the market there are unshelled nuts, cut up or ground; there are also several products processed from them.
What tree does walnut wood come from?
walnut, (genus Juglans), genus of about 20 species of deciduous trees of the family Juglandaceae, native to North and South America, southern Europe, Asia, and the West Indies.
How many types of walnuts are there?
Eastern black walnutEnglish walnutJuglans mandshuri...ButternutNorthern California WalnutColombian WalnutWalnut Tree/Lower classifications
Is walnut a flowering plant?
Walnuts have both male and female flower parts on the same tree (monoecious). The pollen is shed from the male flowers and should settle on the females flowers. The pollen is physically very small and light and can travel quite some distance.
What is the largest leaflet of walnut?
The round-tipped leaflets have smooth margins, and the terminal leaflet is the largest. The leaflets of native North American walnuts are largest toward the centre of the leaf and have toothed margins. A cracked walnut, showing the shell and the seed inside.
Where do commercial walnuts come from?
A cracked walnut, showing the shell and the seed inside. Commercial walnuts are harvested from English walnut trees (Juglans regia).
What is black walnut used for?
The dark fine-grained wood of English and black walnuts is used for furniture, paneling, and gunstocks. The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Melissa Petruzzello, Assistant Editor.
How many stalked leaves does a walnut tree have?
Walnut trees have long compound leaves with 5 to 23 short-stalked leaflets. The male and female reproductive organs are borne in different petal-less flower clusters, known as catkins, on the same tree. The twigs characteristically contain a many-chambered pith.
What is a nut based on?
The botanical definition of a nut, based on features of form…. fruit farming: Waste materials, other uses. …the same uses as black walnut shells. Some nutshells are made into beads, marbles, buttons, carving tools, ink, and ornament.
Where are black walnuts grown?
The butternut ( J. cinerea) of eastern North America also produces an edible nutlike seed. The English walnut is grown in parts of North and South America for commercial nut ...
What wood was used in the 17th century?
Learn More in these related Britannica articles: furniture: France and England: 17th and 18th centuries. …most commonly used wood was walnut; thereafter, and for the rest of the century, it was mahogany. Walnut, though beautiful in hue, was soft and therefore less suited to wood carving than to rounded, curving forms.
What is Walnut?
There are about 15 species of Juglans (walnut genus); commercially, J. regia is the most important. This deciduous tree can grow to 45 m in height. J. regia is native to Asia but is cultivated now in France and other parts of Europe, North Africa, North America, and East Asia.
Where are walnuts found?
Walnuts have been found in prehistoric deposits in Europe dating from the Iron Age and are mentioned in Old Testament references to King Solomon's nut garden. Many legends have been associated with the walnut; the ancient Greeks and Romans regarded them as symbols of fertility. In the Middle Ages, walnuts were thought to ward off witchcraft, the evil eye, and epileptic fits because of the belief that evil spirits lurked in the walnut branches.
What is walnut oil used for?
Historically, walnut oil was prescribed for colic, to soothe intestines, and to relieve diarrhea and hemorrhoids. Further folk uses include treating rickets, frostbite, and glandular disturbances, and as an astringent, tonic restorative, and disinfectant. Blisters, ulcers, itchy scalp/dandruff, sunburn, and perspiration are some of the conditions treated with various walnut preparations.
Does walnut interfere with iron absorption?
None well documented. Walnut interferes with the absorption of iron.
Is walnut good for you?
The inclusion of walnuts in the diet is recommended as a dietary source of polyunsaturated fatty acids and other nutrients, and to improve the lipid profile in hyperlipidemic individuals. Cardiac benefits of walnut consumption are described. Walnuts have also been studied in metabolic syndrome with limited benefit demonstrated. The effect of walnut extract in Alzheimer disease is being investigated.
What is a walnut tree?
For other uses, see Walnut Tree (disambiguation). Walnut trees are any species of tree in the plant genus Juglans, the type genus of the family Juglandaceae, the seeds of which are referred to as walnuts.
What is the fruit of walnut?
The fruits of the walnut are a type of accessory fruit known as a pseudodrupe (or drupe-like nut), the outer covering of the fruit is an involucre - in a drupe the covering would be derived from the carpel.
How many calories are in a walnut?
The raw edible seed of walnut is composed of 4% water, 14% carbohydrates, 15% protein, and 65% fat. In a 100 gram amount, walnuts provide 654 calories and are a rich source (≥20% of Daily Value) of protein, dietary fiber, the B vitamins, niacin, vitamin B6, and folate, and several dietary minerals, particularly manganese.
Why is walnut wood brown?
Freshly sawed walnut heartwood may be greenish in color, but with exposure to air this color quickly changes to brown due to oxidation of the pigment.
How tall are walnut trees?
All species are deciduous trees, 10–40 metres (33–131 ft) tall, with pinnate leaves 200–900 millimetres (7.9–35.4 in), with 5–25 leaflets; the shoots have chambered pith, a character shared with the wingnuts ( Pterocarya ), but not the hickories ( Carya) in the same family.
Why do you add walnut shells to paint?
Walnut shells are added to paint to give it a thicker consistency for "plaster effect" ranges.
Where do walnuts come from?
The best-known member of the genus is the Persian walnut ( J. regia, literally "royal walnut"), native from the Balkans in southeast Europe, southwest and central Asia to the Himalaya and southwest China. Walnuts are a traditional feature of Iranian cuisine; the nation has extensive orchards which are an important feature of regional economies. In Kyrgyzstan alone, there are 230,700 ha of walnut-fruit forest, where J. regia is the dominant overstory tree (Hemery and Popov 1998). In non-European English-speaking nations, the nut of the J. regia is often called the "English walnut"; in Great Britain, the "common walnut."
What is black walnut?
The walnuts from this tree are cultivated for their distinctive and desirable taste. These trees are also grown for their hard, attractive wood. Many cultivars of this tree have been developed for improved quality nuts or wood. The black walnut has sharply ridged gray-black bark that forms diamond shapes, and the trunks may be quite long before reaching the first branches. The tree crowns are usually dense and rounded. The leaves are huge, up to 24 inches long consisting of 13 to 23 lance-shaped leaflets. Autumn color is a fairly bland yellow. This tree is sometimes known as the American walnut or the eastern black walnut.
Where do walnuts come from?
This tree is an Old World walnut tree that is called the English walnut, but it actually comes from China . This tree's history reaches back to stories involving Alexander the Great when he first introduced this tree as Persian in origin. This is the walnut that provides more of the edible walnuts sold in stores. Smooth olive-brown bark on young trees gradually turns silvery gray and rough as the tree ages. The compound leaves are 10 to 16 inches long, clustered in 5 to 9 lance-shaped leaflets. The fruits fall in autumn, and the nuts are relatively thin-shelled with richly flavorful seeds inside. This tree is also known as the common walnut or Persian walnut. Many named cultivars are available.
How tall is a butternut tree?
The butternut is a deciduous tree growing up to 60 feet tall. It is a slow-growing species that rarely lives longer than 75 years. It is similar in appearance to the black walnut, but it is a smaller tree with less fissured bark, fewer leaflets per leaf, and smaller nuts that are more oval-shaped than round. Once a very common North American specimen, the butternut has become increasingly rare due to a spreading canker disease. In different regions, it may be known as oilnut, white walnut, or long walnut.
How long are the leaves of a New Mexico walnut tree?
In moist conditions, the tree features a single, stout trunk. In drier conditions, there are usually several slender trunks. The leaves are 8 to 14 inches long and pinnately compound (grouped in leaflets around a central stem). Regionally, this tree is sometimes known as New Mexico walnut, mountain walnut, or river walnut. This tree prefers moist soil, and in the dry territory that is its native range, the tree seeks out ravines and river beds.
What is a Brazilian walnut tree?
J. australis is a spreading deciduous tree, up to 80 feet wide, which produces first quality lumber, with its trunk straight up. The immature and mature fruits of this tree are also consumed. The Brazilian walnut (also known as the nogal criolla, or tropical walnut) is a tropical tree that is rarely grown in North America, but is sometimes planted as an ornamental shade tree in tropical zones.
What is a yellow-green tree?
This is a deciduous tree with light grey bark. The male flowers are yellow-green catkins produced in spring when new foliage appears. The female flowers have attractive pink or reddish pistils. The large leaves (up to 24 inches) are pinnately compound, with 11 to 17 leaflets that are a lighter green in color than most trees. Other common names for this tree include heartnut and siebold walnut.
Where do little walnuts grow?
The little walnut is a large shrub or small tree that grows wild along streams and ravines. Its name derives from nuts that are only about 1/2 to 3/4 inch wide, but because it commonly grows around stream beds and ravines in Southwestern regions, you may also hear it called Texas walnut, Texas black walnut, or Mexican walnut. This plant usually branches out near the ground and has a broad rounded crown. The bark is gray to dark brown and develops deep fissures over time. The pinnately compound leaves have narrow leaflets 2 to 2 1/2 inches long, with finely serrated edges.
What is sea walnut?
What is a Sea Walnut? A Sea Walnut is a ctenophore organism (a stingless jellyfish-like animal having comb-like structures). Mnemiopsis leidyi, this warty comb jellyfish or sea walnut, is a species of tentaculata ctenophora (comb jelly). Inhabitant to the western Atlantic coastal waters and the east coast of South America, but has become entrenched as an invasive species in European and western Asian areas. However, since 1982 it has been spotted in the Black Sea and thereafter the Caspian Sea. In both the seas, the population has burgeoned since they do not contain any natural predators in the region, and thus this resulted in the collapse of various fisheries in the region for as much as they feed on the zooplankton that the commercial fish essentially consume.
Where is sea walnut found?
Mnemiopsis leidyi (Sea Walnut) is the Latin term of sea walnut’s scientific name. This ctenophore is an inhabitant of the east coast of North and South America.
Why do You have to learn About the Sea Walnut - Physical Description, Scientific Name and Description?
You have to learn about the Sea Walnut - Physical Description, Scientific Name and Description because they are one of the highly-populated species in the world. By learning about their physical description, you will be able to identify a sea walnut as soon as you see it. Moreover, you can also differentiate between jellyfishes and sea walnuts, which can be tricky because of their similar structures. You will also get to learn why these species are considered invasive in certain areas of the world. If you want to pursue zoology in future, learning about the Sea Walnut - Physical Description, Scientific Name and Description will be quite beneficial for you. You can also learn how these water species help in balancing the ecosystem.
Why are sea walnuts so successful?
It is believed that the secret to the success of sea walnut’s lies in their unfussy and effective hunting habits . There has been a research study conducted by Colin where he hand-picked sea walnuts from his domestic dock and had put them in water seeded with tiny particles. The particles were lit with a laser and pictured with a camera, for the purpose to understand how the sea walnut twisted the flow of water around it.
How big is a sea walnut?
The Sea walnut is about 100-120mm in length, and the width of the body is estimated at half of its length. Their body is split up into eight symmetrical parts having longitudinal bands of cilia. They are bio-luminescent and their bodies are clear.
Do sea walnuts sting?
Answer: Ctenophores similar to the sea walnut do not sting. Rather, their tentacles have unique adhesive cells referred to as colloblasts that release a sticky, mucus-like material to trap prey.
Is sea walnut invasive?
Sea walnut invasive species are not threatened. It is however invasive in some seas.
What Is Walnut?
- There are about 15 species of Juglans (walnut genus); commercially, J. regia is the most important. This deciduous tree can grow to 45 m in height. J. regia is native to Asia but is cultivated now in France and other parts of Europe, North Africa, North America, and East Asia.
What Is It Used for?
- Traditional/Ethnobotanical uses
Walnuts have been found in prehistoric deposits in Europe dating from the Iron Age and are mentioned in Old Testament references to King Solomon's nut garden. Many legends have been associated with the walnut; the ancient Greeks and Romans regarded them as symbols of fertilit… - General uses
The inclusion of walnuts in the diet is recommended as a dietary source of polyunsaturated fatty acids and other nutrients, and to improve the lipid profile in hyperlipidemic individuals. Cardiac benefits of walnut consumption are described. Walnuts have also been studied in metabolic syn…
What Is The Recommended Dosage?
- Daily dosages used in clinical trials range from 20 to 84 g/day (1 shelled walnut is approximately 5 g).
Contraindications
- Contraindications have not been identified. Cross-hypersensitivity between tree nuts is known to exist.
Pregnancy/Lactation
- Generally recognized as safe when used as food. The possibility of in utero sensitization has been debated without conclusion.
Further Information
- Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances. Medical Disclaimer
Overview
Walnut trees are any species of tree in the plant genus Juglans, the type genus of the family Juglandaceae, the seeds of which are referred to as walnuts. All species are deciduous trees, 10–40 metres (33–131 ft) tall, with pinnate leaves 200–900 millimetres (7.9–35.4 in), with 5–25 leaflets; the shoots have chambered pith, a character shared with the wingnuts (Pterocarya), but not the h…
Cultivation and uses
The two most commercially important species are J. regia for timber and nuts, and J. nigra for timber. Both species have similar cultivation requirements and are widely grown in temperate zones.
Walnuts are light-demanding species that benefit from protection from wind. Walnuts are also very hardy against drought.
Etymology
The common name walnut derives from Old English wealhhnutu, literally 'foreign nut' (from wealh 'foreign' + hnutu 'nut'), because it was introduced from Gaul and Italy. The Latin name for the walnut was nux Gallica, "Gallic nut".
Folklore
Tradition has it that a walnut tree should be beaten. This would have the benefit of removing dead wood and stimulating shoot formation.
Nutritional information
The raw edible seed of walnut is composed of 4% water, 14% carbohydrates, 15% protein, and 65% fat. In a 100 gram amount, walnuts provide 654 calories and are a rich source (≥20% of Daily Value) of protein, dietary fiber, the B vitamins, niacin, vitamin B6, and folate, and several dietary minerals, particularly manganese.
Walnut oil is composed mostly of polyunsaturated fatty acids, particularly alpha-linolenic acid and linoleic …
Systematics
The genus Juglans is divided into four sections.
The best-known member of the genus is the Persian walnut (J. regia, literally "royal walnut"), native from the Balkans in southeast Europe, southwest and central Asia to the Himalaya and southwest China. Walnuts are a traditional feature of Iranian cuisine; the nation has extensive orchards which are an impo…
Paleontological history
Fossils of Juglans nuts have been described from the Tertiary period of North America. The paleontological history of Juglans regia in Europe shows signs of a post-Ice-Age re-expansíon from refugia in the southeast, much influenced by people carrying walnut nuts about after the numbers of humans had been much increased by the start of agriculture.
See also
• Hickory
• Pecan