''Barringtonia asiatica'' (fish poison tree, putat or sea poison tree) is a species of ''

Barringtonia ''Barringtonia'' is a genus of flowering plants in the family Lecythidaceae first described as a genus with this name in 1775. It is native to Africa, southern Asia, Australia, and various islands of the Pacific and Indian Oceans. The genus nam ...

'' native to

mangrove A mangrove is a shrub or tree that grows in coastal saline water, saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves are taxonomically diverse, as a result of convergent evoluti ...

habitats from islands of the Indian Ocean in the west to tropical Asia and islands of the western Pacific Ocean. It is grown along streets for decorative and shade purposes in some parts of India, for instance in some towns on the southeastern shore. It is also known as Box Fruit due to the distinct box-shaped fruit it produces. Accessed 2009-05-31. The local name ''futu'' is the source of the name for the Polynesian island Futuna. The

type specimen In biology, a type is a particular wiktionary:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to a ...

was collected by botanist

Pehr Osbeck Pehr Osbeck (1723 – 23 December 1805) was a Swedish explorer, naturalist and an apostle of Carl Linnaeus. He was born in the parish of Hålanda on Västergötland and studied at Uppsala with Carolus Linnaeus. Naturalist in Canton In 1750� ...

on a sandy beach area on the island of

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

, later to be described (and given the original name of ''Mammea asiatica'') by

Carl Linnaeus Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the ...

in his ''

Species Plantarum ' (Latin for "The Species of Plants") is a book by Carl Linnaeus, originally published in 1753, which lists every species of plant known at the time, classified into genera. It is the first work to consistently apply binomial names and was the ...

'' in 1753 ''Mammea asiatica'' L. (the basionym to ''Barringtonia asiatica'') was originally described and published in ''Species Plantarum'' 1: 512–513. 1753. (and reassigned to the genus ''

'' by Wilhelm Kurz in 1875).

Description

It is a small to medium-sized tree growing to 7–25 m tall. The

leaves A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...

are narrow obovate, 20–40 cm in length and 10–20 cm in width. Fruit produced as mentioned earlier, is otherwise aptly known as the Box Fruit, due to distinct square like diagonals jutting out from the cross section of the fruit, given its semi spherical shape form from stem altering to a subpyramidal shape at its base. The fruit measures 9–11 cm in diameter, where a thick spongy fibrous layer covers the 4–5 cm diameter

seed A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiospe ...

.Flora of China
''Barringtonia asiatica''
/ref>

Ecology

The fruit is dispersed in the same way as a

coconut The coconut tree (''Cocos nucifera'') is a member of the palm tree family ( Arecaceae) and the only living species of the genus ''Cocos''. The term "coconut" (or the archaic "cocoanut") can refer to the whole coconut palm, the seed, or the ...

– by ocean current – and is extremely water-resistant and buoyant. It can survive afloat for up to fifteen years; it was one of the first plants to colonise

Anak Krakatau Anak Krakatoa ( id, Anak Krakatau)English translation and common name: ''Child of Krakatoa'' is a volcanic island in Indonesia. On 29 December 1927, Anak Krakatoa first emerged from the caldera formed in 1883 by the explosive volcanic eruption ...

when this island first appeared after the

Krakatau Krakatoa (), also transcribed (), is a caldera in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung. The caldera is part of a volcanic island group ( Krakatoa archipelago) comprising four islands. T ...

eruption. When washed ashore, and soaked by rainwater, the seeds germinate.

Human use

All parts of the tree are

poison Poison is a chemical substance that has a detrimental effect to life. The term is used in a wide range of scientific fields and industries, where it is often specifically defined. It may also be applied colloquially or figuratively, with a broa ...

ous, the active poisons including

saponin Saponins (Latin "sapon", soap + "-in", one of), also selectively referred to as triterpene glycosides, are bitter-tasting usually toxic plant-derived organic chemicals that have a foamy quality when agitated in water. They are widely distributed ...

s. Box fruits are potent enough to be used as a fish poison. The seeds are ground to a powder and used to stun or kill fish for easy capture, suffocating the fish while the flesh is unaffected.Thaman, R.R.
Receptors Batiri kei Baravi: The ethnobotany of the Pacific island coastal plants
." ''Atoll Research Bulletin.'' Vol. 361, 1-62. May, 1992. Accessed 2009-05-31.

Gallery

References

{{Taxonbar, from=Q311468 asiatica Flora of tropical Asia Flora of the Pacific Flora of the Western Indian Ocean Trees of Taiwan Flora of the Zanzibar Archipelago Flora of Queensland Ericales of Australia Plants described in 1753 Taxa named by Carl Linnaeus Flora of the Northern Territory Taxa named by Wilhelm Sulpiz Kurz Poisonous plants