Biology:Tectona
| Tectona | |
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| Tectona grandis in new leaves in Kolkata, West Bengal, India . | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Tectona L.f. |
| Species | |
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Tectona is a genus of tropical hardwood trees in the mint family, Lamiaceae.[1][2][3] The three species are often collectively called teak.
Description
Tectona is native to south and southeast Asia, mainly India , Pakistan , Bangladesh, Myanmar, Indonesia and Thailand, and are commonly found as a component of monsoon forest vegetation. They are large trees, growing to 30–40 m (90–120 ft.) tall, deciduous in the dry season. Tectona grandis is an economically important species which is the source of most commercial teak wood products.[4]
Systematics
Teak belongs to the family Lamiaceae (in older classifications in Verbenaceae). Sometimes it is included in the subfamily Prostantheroideae.[5] There are three species of Tectona:
- Tectona grandis (common teak) is by far the most important, with a wide distribution in Bangladesh, Sri Lanka, Myanmar, Thailand, China , India , and Pakistan .
- Tectona hamiltoniana (Dahat teak) is a local endemic species confined to Burma, where it is endangered.
- Tectona philippinensis (Philippine teak) is endemic to the Philippines , and is critically endangered according to the IUCN (http://iucnredlist.org/details/32123/0).
The genus Tectona is a conserved name against the earlier homotypic synonym Theka Adans.[2] The genus was originally described by Carl Linnaeus the Younger in 1782.[6]
The biggest and oldest teak
The biggest and oldest teak is in Uttaradit, Thailand. It is more than 1,500 years old. Its height is 47 metres.
[7]
References
- ↑ "Angiosperm Phylogeny Website - Lamiales". Missouri Botanical Garden. http://www.mobot.org/mobot/research/APweb/orders/lamialesweb.htm#Lamiales.
- ↑ 2.0 2.1 "GRIN Taxonomy for Plants - Tectona". United States Department of Agriculture. http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?11908.
- ↑ Heywood, V.H., Brummitt, R.K., Culham, A. & Seberg, O. 2007: Flowering Plant Families of the World. Royal Botanic Gardens, Kew.
- ↑ Teak - The Wood Database
- ↑ Singh, G. Plant systematics: an integrated approach. Science Publishers, 2004
- ↑ "Plant name details". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew. https://www.ipni.org/n/104591-3.
- ↑ "สกู๊ป.."มเหสักข์" ต้นสักใหญ่ที่สุดในโลก ข่าวสังคม - ครอบครัวข่าว3". http://www.krobkruakao.com/%E0%B8%82%E0%B9%88%E0%B8%B2%E0%B8%A7/70281/%E0%B8%AA%E0%B8%81%E0%B8%B9%E0%B9%8A%E0%B8%9B---%E0%B8%A1%E0%B9%80%E0%B8%AB%E0%B8%AA%E0%B8%B1%E0%B8%81%E0%B8%82%E0%B9%8C--%E0%B8%95%E0%B9%89%E0%B8%99%E0%B8%AA%E0%B8%B1%E0%B8%81%E0%B9%83%E0%B8%AB%E0%B8%8D%E0%B9%88%E0%B8%97%E0%B8%B5%E0%B9%88%E0%B8%AA%E0%B8%B8%E0%B8%94%E0%B9%83%E0%B8%99%E0%B9%82%E0%B8%A5%E0%B8%81.html.
Wikidata ☰ Q9250007 entry
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