Centaurea

…Commonly known as cornflower, this annual plant of the Asteraceae family is popular in spring flower beds and as a winter cut flower (illustration). It is native to southeastern Europe. It is 80-90cm tall, with long lanceolate leaves and white hairs, and branches in large numbers, with solitary flower heads at the top of the stem that bloom gradually downwards. The peripheral flowers of the single flowers are tubular flowers rather than ray flowers, and the seven to eight lobes vary in size, giving it a unique flower shape. The central flowers of the double flowers are all well-developed tubular flowers, and are oblate in shape, with the involucre having overlapping bracts that resemble scales. …

*Some of the terminology that mentions "Centaurea" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…一般にはヤグルマソウとも呼ばれて春の花壇や冬の切花によろこばれているキク科の一年草（イラスト）。原産地はヨーロッパ東南部。高さ80～90cm，葉は長披針形で白い毛があり，多数分枝して茎頂に頭状花を単生ししだいに咲き下る。一重咲きの周辺花は舌状花ではなく管状花で，7～8枚の裂弁には大小があり，独特の花型を呈する。八重咲きは中心花もすべて発達した管状花で，扁球形を呈し，総苞は鱗（うろこ）状に苞片が重なっている。…

※「Centaurea」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