| Tectona | |
|---|---|
_I_IMG_8133.jpg.webp) | |
| Tectona grandis in new leaves in Kolkata, West Bengal, India. | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Tectona L.f. |
| Species | |
| |
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. Archived from the original on 2010-12-07. Retrieved 2010-12-18.
- 1 2 "GRIN Taxonomy for Plants - Tectona". United States Department of Agriculture. Archived from the original on 2010-01-18. Retrieved 2010-12-18.
- ↑ 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
- ↑ "Tectona". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens. Retrieved 17 December 2010.
- ↑ "สกู๊ป.."มเหสักข์" ต้นสักใหญ่ที่สุดในโลก ข่าวสังคม - ครอบครัวข่าว3". Archived from the original on 2014-04-13. Retrieved 2013-03-25.
