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''Tectona'' is a genus of tropical hardwood trees in the mint family, Lamiaceae.〔(【引用サイトリンク】 Angiosperm Phylogeny Website - Lamiales )〕〔(【引用サイトリンク】 GRIN Taxonomy for Plants - ''Tectona'' )〕〔Heywood, V.H., Brummitt, R.K., Culham, A. & Seberg, O. 2007: Flowering Plant Families of the World. Royal Botanic Gardens, Kew.〕 The three species, often collectively called teak, are native to south and southeast Asia, mainly India, Pakistan, Bangladesh, Burma, 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. ==Systematics== Teak belongs to the family Lamiaceae (in older classifications in Verbenaceae). Sometimes it is included in the subfamily Prostantheroideae.〔Singh, G. Plant systematics: an integrated approach. Science Publishers, 2004〕 There are three species of ''Tectona'': * ''Tectona grandis'' (common teak) is by far the most important, with a wide distribution in Bangladesh, 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 also endangered. 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. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tectona」の詳細全文を読む スポンサード リンク
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