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Pistacia atlantica

Pistacia atlantica is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Pistacia atlantica rather than just read about it. In short: Pistacia atlantica is a species of pistachio tree known by the English common names Mt. Atlas mastic tree, Mount Atlas pistachio, Atlantic pistachio, wild pistachio, turpentine tree and Atlantic terebinth.

Pistacia atlantica — main illustration
Pistacia atlantica — illustration

Key takeaways

  • Pistacia atlantica belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Pistacia atlantica to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Pistacia atlantica from memory before moving on to harder problems.

Reference excerpt

Pistacia atlantica is a species of pistachio tree known by the English common names Mt. Atlas mastic tree, Mount Atlas pistachio, Atlantic pistachio, wild pistachio, turpentine tree and Atlantic terebinth. P. atlantica has three subspecies or varieties which have been described as atlantica, cabulica, and mutica. According to molecular phylogenetic studies, P. atlantica subsp. kurdica is actually a separate species, Pistacia eurycarpa.

Names In Kurdish it is called Qazwan, Wanataq and bana. In Tamazight, it is known as Tijjeɣt. In the Canary Islands it is known as Almacigo, and in Arabic it is called بطم (buṭm or buṭum). In southern Iran, in Bandar-Abbas in Hormozgān Province, it is called kasoudang and in Bushehr it is called kolkhong. In Turkey it is commonly known as melengiç. In Kurdish the tree is called darwan or daraban, and the seed is called qezwan or jajig (قەزوان_جاجگ). In Pashto it is called Shanna. And in Birhavi/Balochi it is called Gowan. In Hebrew it is called Elah Atlantit. In Malta, it is known as Deru tal-Atlantiku, Pistaċċa bagħla.

Description

Pistacia atlantica is a deciduous tree growing up to 7 m (23 ft) tall with branches spreading and growing erect to form a dense crown. The trunk is stout and covered in fissured bark. Old trees may have trunks measuring 2 m (6 ft 7 in) in diameter; it may take 200 years for a tree to reach 1 m (3 ft 3 in) wide. The leaves are pinnate, each with seven to 9 lance-shaped leaflets. The leaves and branches often have galls when the tree is infested with gall-producing species of aphids, including Pemphigus utricularis, Slavum wertheimae, and Forda riccobonii. The tree is dioecious with male and female trees producing different types of flowers. Both types are small and greenish and fall away quickly. Monoecious and hermaphrodite trees have been seen, but are unusual. The oblong, fleshy, oily fruit borne by the female tree is 6 to 8 mm (0.24 to 0.31 in) long and pink in color, ripening to blue. The tree grows slowly, and can reach 1000 years old. It has broken bark with ashen gray color. Older branches have the same design, fractured and ash color, which gives the tree a grizzled look. The leaves are oval, almost sessile, shining above, and dark green, with seven to 9 leaflets, imparipinnate with petioles a little winged, flowers in racemes lax, the male and female on different trees. The flowers are unisexual, small, discreet green, thick as pea fruit, then changing to reddish blue. In colder areas the leaves in May check and fall in November. Though dioecious, in some communities males dominate the female specimens in number. It grows in oak woodlands and oak sclerophyllus. The fruits ripen from July to October, starting to bear fruit at the age of eight to 10 years, with abundant fruit after two to three years.

Distribution It is native to a section of Eurasia from North Africa to the Iranian Plateau, where it was once common. Because other trees were rare, it was the only good source of wood and was overharvested, reducing its current distribution. It is a common tree in mountain forests in Iran, and it is "characteristic" of the landscape in parts of Algeria outside the Sahara. The almacigo is a tree that extends from the North Africa and found in thermophilous forests, up to 600 m altitude. It is one of the few deciduous species native to the Canary archipelago. It is native of Eurasia, the Iranian Plateau, to northern Africa. Azerbaijan (Soltanbud forest) In the Crimea, where it is a protected species, it is the only native species of the genus Pistacia.

Uses

There are many uses for this plant. This wild pistachio is the most economically important tree in many parts of the Kurdish regions, including the Zagros Mountains, where it is managed as a valuable forest tree. The resin and fruit oil were historically used for a variety of medicinal purposes. The resin, known in Iran as saqez, is still an important commodity. Another important use is to combat soil erosion. It strengthens the soil, and is used for reforestation of arid and steep slopes and against landslides. It is stronger than Pistacia terebinthus, where it is used as rootstock in Ukraine and the United States for growing Pistacia vera, but resists frost better than P. terebinthus. The resin is used to manufacture alcohol and lacquer. Its essential oils are used in perfume industry. The leaves are rich in tannins, up to 20% in the galls caused by an aphid parasite, used as the raw material for tanning in the leather industry. The sap is dried and used as incense, and its smoke releases a pleasant smell to the local environment for celebrations and religious ceremonies, as "incense".

Food The pistachio fruits are a food source in the area, but the more commonly cultivated pistachio tree P. vera is more valuable for food production. The seeds, like pistachio, are edible oil seeds, like nuts, and contain up to 60% fat. Candy made with P. atlantica in Turkish are called tsukpi pistachio. Sometimes, the immature fruit is harvested and eaten with sour milk. The plant contains a resin, used as chewing gum in Kevan, Turkey, where it is called kevove rubber tree. The resin of the tree is called Cyprus turpentine or Cyprus balsam and used to make chewing gum in Cyprus, in the area of Paphos. It is known as "Paphos Gum," or "Paphitiki Pissa" (Παφίτικη Πίσσα, Πίσσα Παφίτικη) in Cypriot Greek. It has been reported to have significant antimicrobial and antifungal activity. Twenty-six compounds in hexane extract were identified. The major compounds were α-pinene 57.06%, β-pinene 9.83%, trans-pinocarveol 2.95%, trans-Verbenol 3.97%, α-Phellandren-8-ol 3.81%. It is used in a food in Fars province in Iran, named "OuBanneh" (اوبنه). The raw fruits of the wild pistachio are not favored as food and are said to taste like turpentine. They are about 45% oil. The Jewish source The Mishnah, compiled in 200 CE in Tzippori and Beit Shearim, Israel, mentions that the roots of the tree were also consumed, but only after they were pickled in salt or vinegar.

Cultivation Pistacia atlantica is planted as an ornamental shadebearing and drought-tolerant landscape tree in gardens and parks. In California it is imported to use as rootstock for cultivated pistachio trees (Pistacia vera). Both introductions have led to its escape and current status as an occasional invasive species in California.

… excerpt ends here. Continue reading the full article.

Illustrations

Pistacia atlantica illustration
Pistacia atlantica illustration
Pistacia atlantica illustration
Pistacia atlantica: Pistacia atlantica in Elah valley
Pistacia atlantica in Elah valley
Pistacia atlantica: Pistacia atlantica in sunlight
Pistacia atlantica in sunlight

Worked examples

Example 1 — a first encounter with Pistacia atlantica

Start with the simplest possible case. Write down what Pistacia atlantica claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Pistacia atlantica before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Pistacia atlantica ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Pistacia atlantica

In research
Pistacia atlantica appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Pistacia atlantica in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Pistacia atlantica is common in secondary-school and first-year university syllabi. It links to neighbouring topics Flora of North Africa, Flora of Yemen, Flora of temperate Asia, so understanding it makes those chapters shorter.
In everyday life
Look for Pistacia atlantica outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Pistacia atlantica in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Pistacia atlantica means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Pistacia atlantica out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Pistacia atlantica in simple terms?

Pistacia atlantica is a species of pistachio tree known by the English common names Mt. Atlas mastic tree, Mount Atlas pistachio, Atlantic pistachio, wild pistachio, turpentine tree and Atlantic terebinth.

Why does Pistacia atlantica matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Pistacia atlantica?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Pistacia atlantica.

Tags

  • Flora of North Africa
  • Flora of Yemen
  • Flora of temperate Asia
  • Flora of the Canary Islands
  • Flora of the Mediterranean basin
  • Garden plants of Africa
  • IUCN Red List near threatened species
  • Medicinal plants
  • Ornamental trees
  • Pistacia
  • Trees of Mediterranean climate

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