...There are about 10 species of tall annual plants of the Asteraceae family found in Mexico and Central America. The ornamental Tithonia is one of them, the Mexican sunflower ( T. rotundifolia Blake). This wild species grows to a height of over 2m, but the cultivated variety is the improved Torch, which has an upright stem and grows to a height of about 1m. *Some of the terminology that mentions "Mexican sunflower" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…メキシコから中央アメリカにかけて約10種ある丈の高いキク科の一年草。観賞用に利用されるチトニアは,それらのうちのメキシコヒマワリ(ヒロハヒマワリ)T.rotundifolia Blake(英名Mexican sunflower)である。この野生系統は高さ2mをこえるが,栽培されるのはその改良種トーチTorchで,茎は直立し,高さ1mほど。… ※「Mexican sunflower」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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