管かん状じょう花か

noun

tubular flower; disk floret

Botanical term for the small, tube-shaped individual flowers that make up the central disk of composite flower heads (Asteraceae), such as sunflowers and daisies.

• ヒマワリの中ちゅう心しん部ぶは管かん状じょう花かで構こう成せいされている。

  The center of a sunflower is composed of tubular flowers.

• キク科かの植しょく物ぶつでは、管かん状じょう花かと舌ぜつ状じょう花かが見みられる。

  In plants of the Asteraceae family, both tubular flowers and ray florets can be seen.