Shorea robusta

This article is about the plant commonly known as "sal". For other uses, see Sal (disambiguation).
Sal
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Malvales
Family: Dipterocarpaceae
Genus: Shorea
Species: S. robusta
Binomial name
Shorea robusta
Roth
Synonyms

Vatica robusta

Shorea robusta, also known as śāl, sakhua or shala tree, is a species of tree belonging to the Dipterocarpaceae family.

Distribution and description

New leaves with flower buds at Jayanti in Buxa Tiger Reserve in Jalpaiguri district of West Bengal, India.

This tree is native to the Indian subcontinent, ranging south of the Himalaya, from Myanmar in the east to Nepal, India and Bangladesh. In India, it extends from Assam, Bengal, Odisha and Jharkhand west to the Shivalik Hills in Haryana, east of the Yamuna. The range also extends through the Eastern Ghats and to the eastern Vindhya and Satpura ranges of central India.[1] It is often the dominant tree in the forests where it occurs. In Nepal, it is found mostly in the Terai region from east to west, especially, in the Churia range (The Shivalik Hill Churia Range) in the subtropical climate zone. There are many protected areas, such as Chitwan National Park, Bardia National Park and Shukla Phat Wildlife Reserve, where there are dense forests of huge sal trees. It is also found in the lower belt of the Hilly region and inner terai.

Sal tree in Chhattisgarh, India

Sal tree is also known as Sakhua in northern India including MP, Orrisa and Jharkhand.[2] [3]

Sal is moderate to slow growing, and can attain heights of 30 to 35 m and a trunk diameter of up to 2-2.5 m. The leaves are 10–25 cm long and 5–15 cm broad. In wetter areas, it is evergreen; in drier areas, it is dry-season deciduous, shedding most of the leaves in between February to April, leafing out again in April and May.

In the Royal Palace of Phnom Penh in Cambodia, a large flowering tree is erroneously named Shorea robusta, where this individual tree is actually an example of the cannonball tree, Couroupita guianensis. Likely due to the many tourists visiting this location, the erroneous name tag, and the fact that the flowers of the cannonball tree are quite showy and fragrant, most on-line picture searches will lead to the wrong plant species.

Religious significance

Queen Māyā giving birth to the Buddha

In Hindu tradition, the sal tree is said to be favoured by Vishnu.[4] Its name shala, shaal or sal, comes from Sanskrit (शाल, śāla, literally "house"), a name that suggests it for housing timber; other names in the Sanskrit language are ashvakarna, chiraparna and sarja, among many others.

The sal tree is often confused with the ashoka tree (Saraca indica) in the ancient literature of the Indian Subcontinent.

Jains state that the 24th tirthankara, Mahavira, achieved enlightenment under a sal.

There is a standard decorative element of Hindu Indian sculpture which originated in a yakshi grasping the branch of a flowering tree while setting her foot against its roots.[5] This decorative sculptural element was integrated into Indian temple architecture as salabhanjika or "sal tree maiden", although it is not clear either whether it is a sal tree or an asoka tree.[6]

In Kathmandu Valley of Nepal, one can find typical Nepali pagoda temple architectures with very rich wooden carvings, and most of the temples, such as Nyatapol Temple (Nyatapola), are made of bricks and sal tree wood.

Buddhism

Buddhist tradition holds that Queen Māyā of Sakya, while en route to her grandfather's kingdom, gave birth to Gautama Buddha while grasping the branch of a sal tree or an asoka tree in a garden in Lumbini in south Nepal.[7]

Also according to Buddhist tradition, the Buddha was lying between a pair of sal trees when he died:

Then the Blessed One with a large community of monks went to the far shore of the Hiraññavati River and headed for Upavattana, the Mallans' sal-grove near Kusinara. On arrival, he said to Ven. Ananda, "Ananda, please prepare a bed for me between the twin sal-trees, with its head to the north. I am tired, and will lie down."[8]

The sal tree is also said to have been the tree under which Koṇḍañña and Vessabhū, respectively the fifth and twenty fourth buddhas preceding Gautama Buddha, attained enlightenment

In Buddhism, the brief flowering of the sal tree is used as a symbol of impermanence and the rapid passing of glory, particularly as an analog of sic transit gloria mundi. In Japanese Buddhism, this is best known through the opening line of The Tale of the Heike – a tale of the rise and fall of a once-powerful clan – whose latter half reads "the color of the sāla flowers reveals the truth that the prosperous must decline." (沙羅雙樹の花の色、盛者必衰の理を顯す Jōshahissui no kotowari wo arawasu),[9] quoting the four-character idiom jōsha hissui (盛者必衰) from a passage in the Humane King Sutra, "The prosperous inevitably decline, the full inevitably empty" (盛者必衰、実者必虚 jōsha hissui, jissha hikkyo?).

In Sri Lanka, people used incorrectly to think that Couroupita guianensis was the sal tree of Buddhist lore.[10]

Uses

Sal is one of the most important sources of hardwood timber in India, with hard, coarse-grained wood that is light in colour when freshly cut, but becomes dark brown with exposure. The wood is resinous and durable, and is sought-after for construction, although not well suited to planing and polishing. The wood is especially suitable for constructing frames for doors and windows. The dry leaves of sal are a major source for the production of leaf plates called as patravali and leaf bowls in northern and eastern India. The leaves are also used fresh to serve ready made paan (betelnut preparations) and small snacks such as boiled black grams, gol gappa, etc. The used leaves/plates are readily eaten by goats and cattle that roam the streets freely. The tree has therefore protected northern India from a flood of styrofoam and plastic plates that would have caused tremendous pollution. In South India, fresh plantain and banana leaves are used instead. In Nepal, its leaves are used to make local plates and vessels called "tapari", "doona" and "bogata" in which rice and curry is served. However, the use of such "natural" tools have sharply declined during last decade. Sal tree resin, ṛla in Sanskrit, is used as an astringent in Ayurvedic medicine.[11] It is also burned as incense in Hindu ceremonies, and sal seeds and fruit are a source of lamp oil and vegetable fat. Shorea robusta seed oil is extracted from the seeds and used as cooking oil after refining.

See also

References

  1. ↑ Oudhia P., Ganguali R.N. (1998).Is Lantana camara responsible for Sal-borer infestation in M.P.?. Insect Environment. 4 (1): 5.
  2. ↑ http://infochangeindia.org/environment/stories-of-change/a-rakhi-for-trees.html
  3. ↑ http://bjmirror0112.wordpress.com/
  4. ↑ Sacred trees
  5. ↑ Buddhistische Bilderwelt: Hans Wolfgang Schumann, Ein ikonographisches Handbuch des Mahayana- und Tantrayana-Buddhismus. Eugen Diederichs Verlag. Cologne. ISBN 3-424-00897-4, ISBN 978-3-424-00897-5
  6. ↑ Eckard Schleberger, Die indische Götterwelt. Gestalt, Ausdruck und Sinnbild Eugen Diederich Verlag. Cologne. ISBN 3-424-00898-2, ISBN 978-3-424-00898-2
  7. ↑ Buswell, Robert Jr; Lopez, Donald S. Jr., eds. (2013). Princeton Dictionary of Buddhism. Princeton, NJ: Princeton University Press. p. 724. ISBN 9780691157863.
  8. ↑ "Maha-parinibbana Sutta: The Great Discourse on the Total Unbinding" (DN 16), translated from the Pali by Thanissaro Bhikkhu". Retrieved 2015-06-29.
  9. ↑ Chapter 1.1, Helen Craig McCullough's translation
  10. ↑ http://www.sundaytimes.lk/070916/News/news00026.html
  11. ↑ Sala, Asvakarna
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