Samanea saman

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Samanea saman
Hitachi's tree (cropped).jpg
The Hitachi Tree at the Moanalua Gardens, Hawaii
Status TNC G5.svg
Secure  (NatureServe) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Samanea
Species:
S. saman
Binomial name
Samanea saman
Synonyms [3]
List
    • Acacia propinquaA.Rich.
    • Albizia saman(Jacq.) F.Muell.
    • Albizzia saman(Jacq.) Merr.
    • Calliandra saman(Jacq.) Griseb.
    • Enterolobium saman(Jacq.) Prain
    • Feuilleea saman(Jacq.) Kuntze
    • Inga cinereaWilld.
    • Inga salutarisKunth
    • Inga saman(Jacq.) Willd.
    • Mimosa pubiferaPoir.
    • Mimosa samanJacq.
    • Pithecellobium cinereumBenth.
    • Pithecellobium saman(Jacq.) Benth.
    • Pithecolobium saman(Jacq.) Benth. [Spelling variant]
    • Samanea saman(Jacq.) Merr.
    • Zygia saman(Jacq.) A.Lyons
A Chankiri Tree, otherwise known as Rain tree Saman (Samanea saman) (14592069826).jpg
A Chankiri Tree, otherwise known as Rain tree

Samanea saman is a species of flowering tree in the pea family, Fabaceae, now in the Mimosoid clade [5] and is native to Central and South America. [6] It is often placed in the genus Samanea , [7] which by yet other authors is subsumed in Albizia entirely.

Contents

Its range extends from Mexico south to Peru and Brazil, but it has been widely introduced to South [ citation needed ] and Southeast Asia, as well as the Pacific Islands, including Hawaii. It is a well-known tree, rivaled perhaps only by lebbeck and pink siris among its genus. It is well represented in many languages and has numerous local names in its native range; [8] common English names include saman, rain tree and monkeypod [6] (see also § Names below).

In Cambodia it is colloquially known as the Chankiri Tree (can be written ចន្ទគិរី or ចន្ទ៍គីរី).

Description

Pink-flowers being pollinated by a black carpenter bee, in Kolkata Flower & flower buds- Samanea saman I IMG 3407.jpg
Pink-flowers being pollinated by a black carpenter bee, in Kolkata

Tree

Saman is a wide-canopied tree with a large symmetrical umbrella-shaped crown. It usually reaches a height of 15–25 m (49–82 ft) and a diameter of 30 m (98 ft). [6]

This species of flowering tree in the Fabaceae family is native to Central and South America but has been widely introduced across the tropics, especially South and Southeast Asia.[ citation needed ]

Its branches have velvety and hairy bark. [9] Large branches of the tree tend to break off, particularly during rainstorms. This can be hazardous as the tree is very commonly used for avenue plantation.[ citation needed ]

A rain tree leaf is pinnate made of 6–16 leaflets, each leaflet is shaped like a diamond 2–4 centimetres (0.79–1.57 in) long and 1–2 centimetres (0.39–0.79 in) wide with a dull top surface and finely hairy beneath. The tree sheds its leaves for a while during dry periods. [6] Its crown is big and can provide shade, but allows rain to fall through into the ground beneath it. [9]

The leaves fold in rainy weather and in the evenings, hence the names rain tree and five o'clock tree. [10]

Flowers and seeds

The tree has pinkish flowers with white and red stamens, set on heads with around 12–25 flowers per head. These heads may number in the thousands, covering the whole tree. [6]

The seed pods of the tree are curved and leathery; they contain sticky, edible flesh covering the flat, oval seeds. [11] [12]

Names

In English it is usually known as rain tree or saman. It is also known as "monkey pod", "giant thibet", "inga saman", [note 1] "cow tamarind", [13] East Indian walnut, [note 2] "soar", or "suar". In English-speaking regions of the Caribbean, it is known as coco tamarind in Grenada; French tamarind in Guyana; and samaan tree in Trinidad. [13] In Philippine English, it is confusingly simply known as "acacia", due to its resemblance to native Acacia species. [14]

A giant specimen near Kanchanaburi, Thailand, known locally as chamchuri-yak (cchaamcchuriiyaks). "Chamchuri" is the Thai name of the tree species, whereas "yak" is the Thai pronunciation of yaksha, a mythical demon, referring in this context to the monstrous size of the tree. 2021 tncchaamcchuriiyaks kaaycchnburii Giant Samanea saman (CHAMCHURI) @ Kanchanaburi 02.jpg
A giant specimen near Kanchanaburi, Thailand, known locally as chamchuri-yak (จามจุรียักษ์). "Chamchuri" is the Thai name of the tree species, whereas "yak" is the Thai pronunciation of yaksha, a mythical demon, referring in this context to the monstrous size of the tree.

The original name, saman - known in many languages and used for the specific epithet - derives from zamang, meaning "Mimosoideae tree" in some Cariban languages of northern Venezuela. [8] This name is also where its genus name Samanea comes from. [11]

The origin of the name "rain tree" is unknown. It has been variously attributed to local names ki hujan or pokok hujan ("rain tree") in Indonesia and Malaysia because its leaves fold during rainy days (allowing rain to fall through the tree); [15] the way the relative abundance of grass under the tree in comparison to surrounding areas; the steady drizzle of honeydew-like discharge of cicadas feeding on the leaves; the occasional shower of sugary secretions from the nectaries on the leaf petioles; to the shedding of stamens during heavy flowering. [14]

In the Caribbean, it is sometimes known as marsave. It is also known as algarrobo in Cuba; guannegoul(e) in Haiti; and goango or guango in Jamaica. In French-speaking islands, it is known as gouannegoul or saman.[ citation needed ]

In Latin America, it is variously known as samán, cenízaro, cenicero, genízaro, carreto, carreto negro, delmonte, dormilón, guannegoul, algarrobo del país, algarrobo, campano, carabeli, couji, lara, urero, or zarza in Spanish; and chorona in Portuguese. [14]

In the Pacific Islands, it is known as filinganga in the Northern Marianas; trongkon-mames in Guam; gumorni spanis in Yap; kasia kula or mohemohe in Tonga; marmar in New Guinea; ʻohai in Hawaii; tamalini or tamaligi in Samoa; and vaivai ni vavalangi, vaivai moce or sirsa in Fiji. [16] The former comes from vaivai "watery" (in allusion to the tree's "rain") + vavalagi "foreign". In some parts of Vanua Levu, Fiji the word vaivai is used to describe the lebbeck, because of the sound the seedpods make, and the word mocemoce (sleepy, or sleeping) is used for A. saman due to the 'sleepiness' of its leaves.[ citation needed ]

In Southeast Asia, it is known as akasya or palo de China in the Philippines; [14] meh or trembesi in Indonesia; pukul lima ("five o'clock tree") in Malaysia and Singapore; [17] [18] ampil barang ("Western tamarind") in Cambodia; [19] ก้ามปู (kampu), ฉำฉา (chamcha), จามจุรีแดง (chamchuri daeng), จามจุรี (chamchuri) in Thai; ကုက္ကို (kokko) in Myanmar; and còng, muồng tím, or cây mưa ("rain tree") in Vietnam.

In South Asia, it is known as shiriisha in Sanskrit; শিরীষ (shirish) in Bengali; shirish in Gujarati; सीरस (vilaiti siris) in Hindi; bagaya mara in Kannada; ചക്കരക്കായ്‌ മരം (chakkarakkay maram) in Malayalam; विलायती शिरीश in Marathi; mara in Sinhalese; தூங்குமூஞ்சி மரம் (thoongu moonji maram, "sleepy faced tree") in Tamil; and నిద్ర గన్నేరు (nidra ganneru) in Telugu.[ citation needed ]

In Madagascar, it is also known as bonara (mbaza), kily vazaha, madiromany, mampihe, or mampohehy.[ citation needed ]

In European regions where the tree does not usually grow, its names are usually direct translations of "rain tree". These include arbre à (la) pluie (France), árbol de lluvia (Spain); and Regenbaum (Germany).[ citation needed ]

Use

The edible fruit pulp can be made into a beverage that tastes like lemons; the pulp is also an additive to gasoline. [9]

Its wood is used for carving and making furniture. [6]

The "Samanea saman" tree is one of several types of host plants that allows lac insects (Kerria lacca) infestation. The resultant copious sap/insect discharge caused by this insect is a harden material that is subsequently collected and processed into lac/shellac and used in making lacquerware and wood finishes.

Raintrees around the world

In Cambodia

It is unclear when and how Chankiri was introduced to Cambodia. It is possible the tree was introduced from Brazil by the French in the 1920s, together with the rubber tree (Hevea brasiliensis) during the rubber industry's global boom in the early 1900s. It is also possible the tree came from neighboring countries in the region where the plant had been introduced earlier on by Western colonial explorers.[ citation needed ]

Since its introduction to Cambodia, the Samanea saman is known locally as chankiri (ចន្ទគិរី). It has been widely planted across the country thanks to its tall height and expansive branches that can shade large areas, and as an ornamental. The fruit is eaten, and in famine times the young leaves are eaten in salads. [19]

Chamri (ចាមរី) [20] is the official Khmer name for the plant because the flowers from this tree resemble the beautiful long-haired tail of the chamri (known in English as yak). Ampil barang (French tamarind) is another colloquial name for it in Cambodia.

Chankiri Trees in the Killing Fields

A Chankiri Tree. The sign reads "Chankiri Tree against which executioners beat children" ChoeungEk-Darter-7.jpg
A Chankiri Tree. The sign reads "Chankiri Tree against which executioners beat children"

Since its introduction to Cambodia, Chankiri has been widely planted across the country thanks to its tall height and expansive branches that can shade large areas. Multiple chankiri can also be found in the Killing Fields, an execution field used by the Khmer Rouge during the Cambodian genocide, though the trees were planted at the field long before. Children and infants with parents accused of crimes against the regime were smashed against trees, in the hope that the children "wouldn't grow up and take revenge for their parents' deaths". [21]

It was a coincidence that the Chankiri tree at the Killing Fields is one of the many trees against which the Khmer Rouge executioners beat young children and there are no specific associations locally between the Chankiri tree and the Khmer Rouge.[ citation needed ]

In Venezuela

When Alexander von Humboldt travelled in the Americas from 1799 to 1804, he encountered a giant saman tree near Maracay, Venezuela. He measured the circumference of the parasol-shaped crown at 576 ft (about 180.8 m), [note 3] its diameter was around 190 ft (about 59.6 m), on a trunk at 9 ft (about 2.8 m) in diameter and reaching just 60 ft (nearly 19 m) in height. Humboldt mentioned the tree was reported to have changed little since the Spanish colonization of Venezuela; he estimated it to be as old as the famous Canary Islands dragon tree (Dracaena draco) of Icod de los Vinos on Tenerife. [22]

The tree, called Samán de Güere (transcribed Zamang del Guayre by von Humboldt) still stands today, and is a Venezuelan national treasure. Just like the dragon tree on Tenerife, the age of the saman in Venezuela is rather indeterminate. As von Humboldt's report makes clear, according to local tradition, it would be older than 500 years today, which is rather outstanding by the genus' standards. It is certain, however, the tree is quite more than 200 years old today, but it is one exceptional individual; even the well-learned von Humboldt could not believe it was actually the same species as the saman trees he knew from the greenhouses at Schönbrunn Castle. [8] A famous specimen called the "Brahmaputra Rain Tree" located at Guwahati on the banks of the Brahmaputra River in Assam, India has the thickest trunk of any Saman; approximately 12 feet (3.7 m) diameter at breast height (DBH). [23] The size of the pollen is around 119 microns and it is polyad of 24 to 32 grains.

Submerged tree in the Mekong, at Si Phan Don, Laos, during the dry season (when the river is low) Flooded Albizia Saman (rain tree) in the Mekong.jpg
Submerged tree in the Mekong, at Si Phan Don, Laos, during the dry season (when the river is low)

Carbon sequestration

Carbon sequestration is the capture and long-term removal of carbon dioxide from the atmosphere. According to a research conducted at the School of Forestry of the Bogor Agricultural Institute, Indonesia, a mature tree with a crown diameter measuring 15 metres (49 ft) absorbed 28.5 metric tons (28.0 long tons; 31.4 short tons) of CO2 annually. The trees have been planted in cities of Kudus and Demak and also will be planted along the shoulder of the road from Semarang to Losari. [24]

Notes

  1. ↑ It is a rather close relative to the ingas.
  2. ↑ It is not at all closely related to walnuts.
  3. ↑ Presuming von Humboldt used the Magdeburg foot of 1755, introduced in Prussia in 1793, which was 1.044 feet (0.318 m) (31.385 cm).

Footnotes

  1. ↑ Botanic Gardens Conservation International (BGCI) & IUCN SSC Global Tree Specialist Group. 2019. Samanea saman. The IUCN Red List of Threatened Species 2019: e.T144255307A148988354. https://dx.doi.org/10.2305/IUCN.UK.2019-2.RLTS.T144255307A148988354.en. Accessed on 01 March 2024.
  2. ↑ "Albizia saman. NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 1 March 2024.
  3. 1 2 "Samanea saman (Jacq.) Merr". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 3 March 2020.
  4. ↑ Merrill, E.D. (1916). Journal of the Washington Academy of Sciences. 6: 47.{{cite journal}}: Missing or empty |title= (help)
  5. ↑ The Legume Phylogeny Working Group (LPWG) (2017). "A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny". Taxon . 66 (1): 44–77. doi: 10.12705/661.3 . hdl: 10568/90658 .
  6. 1 2 3 4 5 6 Staples, George W.; Elevitch, Craig R. (2006). "Samanea saman (rain tree)". In Elevitch, Craig R. (ed.). Traditional Trees of Pacific Islands: Their Culture, Environment, and Use. Holualoa, Hawaii, USA: Permanent Agricultural Resources. pp. 662–664. ISBN   978-0-9702544-5-0.
  7. ↑ "Samanea saman". Germplasm Resources Information Network . Agricultural Research Service, United States Department of Agriculture . Retrieved 2010-03-25.
  8. 1 2 3 von Humboldt & Bonpland (1820): p.99 footnote
  9. 1 2 3 Arditti, Joseph; Mak Chin On (1999). "The Golden Rain Tree". Maryland Nursery. Archived from the original on 15 Jun 2013.
  10. ↑ "Samanea saman (Jacq.) Merr". National Parks, A Singapore Government Official Website.
  11. 1 2 Allen, O. N.; Allen, Ethel K. (1981). The Leguminosae, a source book of characteristics, uses, and nodulation. Madison, Wisconsin, USA: University of Wisconsin Press. p. 590. ISBN   978-0-299-08400-4.
  12. ↑ "Samanea saman (rain tree)". CABI Compendium. Centre for Agriculture and Bioscience International: 4026. 22 September 2021. doi: 10.1079/cabicompendium.4026 . S2CID   253665652.
  13. 1 2 Among the legumes, it is not very closely related to tamarinds.
  14. 1 2 3 4 Staples, George W.; Elevitch, Craig R. (2006). Samanea saman (rain tree). Species Profiles for Pacific Island Agroforestry.
  15. ↑ Ahmad Azaruddin MN (4 June 2013). "Samanea saman: The umbrella-like rain tree". Colours of FRIM. Forest Research Institute Malaysia . Retrieved 1 March 2023.
  16. ↑ Keppel, Gunnar; Ghazanfar, Shahina A. (2011). Trees of Fiji: A Guide to 100 Rainforest Trees (third, revised ed.). Secretariat of the Pacific Community & Deutsche Gesellschaft für Technische Zusammenarbeit. pp. 204–5.
  17. ↑ Adnan Mohamad (2003). Pokok-pokok untuk tanaman bandar [Trees for town planting]. Kuala Lumpur, Malaysia: Forest Research Institute Malaysia. p. 111. ISBN   983-2181-51-8.
  18. ↑ "Rain Tree". Gardens, Parks & Nature. National Parks Board. 24 June 2021. Retrieved 2 March 2023.
  19. 1 2 Pauline Dy Phon (2000). Plants Utilised In Cambodia/Plantes utilisées au Cambodge. Phnom Penh: Imprimerie Olympic. p. 174.
  20. ↑ Dictionnaire Cambodgien, Fifth Edition. Edition De L’Institut Bouddhique. 1967.
  21. ↑ Tyner, James A.; Philo, Chris (2009). War, violence, and population: making the body count. Guilford Press. p. 2. ISBN   978-1-60623-037-4.
  22. ↑ von Humboldt & Bonpland (1820): pp.98-100
  23. ↑ <not stated> (November 4, 2012). "Landmark Trees of India".
  24. ↑ "Save the earth by planting Trembesi".

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References

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