Tectona Explained

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. The genus was originally described by Carl Linnaeus the Younger in 1782.

Notable examples

The biggest and oldest teak is in Uttaradit, Thailand. It is more than 1,500 years old. Its height is 47 metres. ^[6]

Notes and References

Web site: Angiosperm Phylogeny Website - Lamiales . . 2010-12-18 . https://web.archive.org/web/20101207111750/http://www.mobot.org/MOBOT/research/APweb/orders/lamialesweb.htm#Lamiales . 2010-12-07 . live .
Web site: GRIN Taxonomy for Plants - Tectona . . 2010-12-18 . https://web.archive.org/web/20100118134529/http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?11908 . 2010-01-18 . live .
Heywood, V.H., Brummitt, R.K., Culham, A. & Seberg, O. 2007: Flowering Plant Families of the World. Royal Botanic Gardens, Kew.
https://www.wood-database.com/wood-articles/teak/ Teak - The Wood Database
Singh, G. Plant systematics: an integrated approach. Science Publishers, 2004
Web site: สกู๊ป.."มเหสักข์" ต้นสักใหญ่ที่สุดในโลก ข่าวสังคม - ครอบครัวข่าว3 . 2013-03-25 . dead . https://web.archive.org/web/20140413161012/https://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 . 2014-04-13 .