''Pterocarpus indicus'' (commonly known as Amboyna wood, Malay padauk, Papua New Guinea rosewood, Philippine mahogany, Andaman redwood, Burmese rosewood, narra
and asana in the Philippines, angsana, or Pashu padauk) is a species of ''
Pterocarpus
''Pterocarpus'' is a pantropical genus of trees in the family Fabaceae. It belongs to the subfamily Faboideae, and was recently assigned to the informal monophyletic ''Pterocarpus'' clade within the Dalbergieae. Most species of ''Pterocarp ...
'' native to southeastern
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an are ...
, northern
Australasia
Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologic ...
, and the western
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the conti ...
islands, in
Cambodia
Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailand ...
, southernmost
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig ...
,
East Timor
East Timor (), also known as Timor-Leste (), officially the Democratic Republic of Timor-Leste, is an island country in Southeast Asia. It comprises the eastern half of the island of Timor, the exclave of Oecusse on the island's north-w ...
,
Indonesia
Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Gui ...
,
Malaysia
Malaysia ( ; ) is a country in Southeast Asia. The federal constitutional monarchy consists of thirteen states and three federal territories, separated by the South China Sea into two regions: Peninsular Malaysia and Borneo's East Mal ...
,
Papua New Guinea
Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...
, the
Philippines
The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no),
* bik, Republika kan Filipinas
* ceb, Republika sa Pilipinas
* cbk, República de Filipinas
* hil, Republ ...
, the
Ryukyu Islands
The , also known as the or the , are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yon ...
, the
Solomon Islands
Solomon Islands is an island country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and north-west of Vanuatu. It has a land area of , and a population of approx. 700,000. Its capit ...
,
Thailand
Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...
, and
Vietnam
Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making ...
.
[International Legume Database & Information Service]
''Pterocarpus indicus''
''Pterocarpus indicus'' was one of two species (the other being ''
Eysenhardtia polystachya'') used as a source for the 16th- to 18th-century traditional
diuretic
A diuretic () is any substance that promotes diuresis, the increased production of urine. This includes forced diuresis. A diuretic tablet is sometimes colloquially called a water tablet. There are several categories of diuretics. All diuretics i ...
known as ''
lignum nephriticum''.
Many populations of ''Pterocarpus indicus'' are seriously threatened. It is extinct in Vietnam and possibly in Sri Lanka and Peninsular Malaysia.
It was declared the national tree of the Philippines in 1934 by
Governor-General
Governor-general (plural ''governors-general''), or governor general (plural ''governors general''), is the title of an office-holder. In the context of governors-general and former British colonies, governors-general are appointed as viceroy t ...
Frank Murphy
William Francis Murphy (April 13, 1890July 19, 1949) was an American politician, lawyer and jurist from Michigan. He was a Democrat who was named to the Supreme Court of the United States in 1940 after a political career that included serving ...
of the
Insular Government of the Philippine Islands
The Insular Government of the Philippine IslandsThis form of the name appeared in the titles of U.S. Supreme Court cases, but was otherwise rarely used. See Costas v. Insular Government of the Philippine Islands, 221 U.S. 623, 1911. The Admini ...
through Proclamation No. 652.
Description
It is a large
deciduous
In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, ...
tree growing to 30–40 m tall, with a trunk up to 2 m diameter. The
leaves
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...
are 12–22 cm long, pinnate, with 5–11 leaflets, the girth is 12–34 m wide. The
flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanis ...
s are produced in
panicle
A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...
s 6–13 cm long containing a few to numerous flowers; flowering is from February to May in the Philippines, Borneo and the Malay peninsula. They are slightly fragrant and have yellow or orange-yellow petals. The
fruit
In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering.
Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in partic ...
is a semiorbicular
pod 2–3 cm diameter, surrounded by a flat 4–6 cm diameter membranaceous wing (wing-like structure) which aids dispersal by the wind. It contains one or two
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 angiosper ...
s, and does not split open at maturity; it ripens within 4–6 years, and becomes purple when dry. The central part of the pod can be smooth (f. ''indica''), bristly (f. ''echinatus'' (Pers.) Rojo) or intermediate.
[Danida Seed Leaflet]
''Pterocarpus indicus'' (pdf file)
Purdue University
Purdue University is a public land-grant research university in West Lafayette, Indiana, and the flagship campus of the Purdue University system. The university was founded in 1869 after Lafayette businessman John Purdue donated land and ...
New Crops
''Pterocarpus indicus''
Most ''Pterocarpus'' species prefer seasonal weather but ''P. indicus'' prefer
rainforest
Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfores ...
s.
Note: ''
Pterocarpus macrocarpus'', a similar species native to
Burma
Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, Joh ...
, is referred to as "Rosewood" throughout South East Asia. ''P. macrocarpus'' is usually harder than ''P. indicus''. When in burl form both are referred to as Amboyna Burl.
Uses
The hardwood, which is purplish, is
termite
Termites are small insects that live in colonies and have distinct castes ( eusocial) and feed on wood or other dead plant matter. Termites comprise the infraorder Isoptera, or alternatively the epifamily Termitoidae, within the order Blat ...
-resistant and rose-scented. The wood known in Indonesia as ''amboyna'' is the
burl
A burl (American English) or burr (British English) is a tree growth in which the grain has grown in a deformed manner. It is commonly found in the form of a rounded outgrowth on a tree trunk or branch that is filled with small knots from dor ...
of the tree, named after
Ambon, where much of this material was originally found. Often amboyna is finely sliced to produce an extremely decorative veneer, used for decoration and in making of furniture and keys on a
marimba
The marimba () is a musical instrument in the percussion family that consists of wooden bars that are struck by mallets. Below each bar is a resonator pipe that amplifies particular harmonics of its sound. Compared to the xylophone, the timbre ...
.
It is a premium timber species suitable for high grade furniture, lumber and plywood for light construction purposes. It is also used for cartwheels, wood carving and musical instruments.
The flower is used as a honey source while leaf infusions are used as shampoos. Both flowers and leaves were said to be eaten. The leaves are supposedly good for waxing and polishing brass and copper. It is also a source of kino or
resin
In polymer chemistry and materials science, resin is a solid or highly viscous substance of plant or synthetic origin that is typically convertible into polymers. Resins are usually mixtures of organic compounds. This article focuses on nat ...
.
[
The leaves of narra are also used in traditional medicine to treat a variety of health problems. Narra leaves contain flavonoids. Flavonoids are antioxidants that provide health benefits to humans, such as anti-inflammatory and anti-allergic benefits. Flavonoids in narra leaves may be capable of preventing damage to your kidneys.
In folk medicine, it is used to combat tumors.][ This property might be due to an acidic ]polypeptide
Peptides (, ) are short chains of amino acids linked by peptide bonds. Long chains of amino acids are called proteins. Chains of fewer than twenty amino acids are called oligopeptides, and include dipeptides, tripeptides, and tetrapeptides.
...
found in its leaves that inhibited growth of Ehrlich ascites carcinoma cells by disruption of cell and nuclear membranes. It was also one of the sources of '' lignum nephriticum'', a diuretic
A diuretic () is any substance that promotes diuresis, the increased production of urine. This includes forced diuresis. A diuretic tablet is sometimes colloquially called a water tablet. There are several categories of diuretics. All diuretics i ...
in Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
during the 16th to 18th centuries. Its reputation is due to its wood infusions, which are fluorescent
Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore a lower photon energy, ...
.
The tree is recommended as an ornamental tree
Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that ...
for avenues and is sometimes planted in Puerto Rico
Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and unincorporated ...
as a shade and ornament. The tall, dome-shaped crown, with long, drooping branches is very attractive and the flowers are spectacular in areas with a dry season. It is very easily propagated from seed or large stem cuttings, but suffers from disease problems. It is widely planted as a roadside, park, and parking lot
A parking lot (American English) or car park (British English), also known as a car lot, is a cleared area intended for parking vehicles. The term usually refers to an area dedicated only for parking, with a durable or semi-durable surface ...
tree.
In agroforestry, it maintains ecosystem fertility and soil stability. Narra is a leguminous plant that is capable of fixing nitrogen by forming endosymbiotic relationships with nitrogen-fixing bacteria that lives in its root nodules. Leguminous plants, such as narra, are responsible for transforming nitrogen into a usable form.
In the Philippines, a permit is required to cut the narra (cf. Tagalog
Tagalog may refer to:
Language
* Tagalog language, a language spoken in the Philippines
** Old Tagalog, an archaic form of the language
** Batangas Tagalog, a dialect of the language
* Tagalog script, the writing system historically used for Taga ...
and Cebuano ''nára'', Maranao ''nara''), but nevertheless the popular sturdy wood is widely used for construction and furniture projects.
Symbolism
It is the national tree of the Philippines, as well as the provincial tree of Chonburi
Chonburi ( th, ชลบุรี, , IAST: , ) is the capital of Chonburi Province and Mueang Chonburi District in Thailand. It is about 100 km southeast of Bangkok, on the coast of the Gulf of Thailand. Its name means 'city of water'. Chonb ...
and Phuket
Phuket (; th, ภูเก็ต, , ms, Bukit or ''Tongkah''; Hokkien:普吉; ) is one of the southern provinces (''changwat'') of Thailand. It consists of the island of Phuket, the country's largest island, and another 32 smaller islands of ...
in Thailand.
References
External links
''Pterocarpus indicus'' (narra)
Images and references – (2006) 17p
*PIER species info
{{Taxonbar, from=Q979014
indicus
Trees of China
Trees of Taiwan
Flora of tropical Asia
National symbols of the Philippines
Vulnerable plants