center of disc造句

• Its leaves have long, winged head may be up to 8 centimeters ( 3 inches ) across and has a dark reddish center of disc florets and an outer fringe of about 20 long ray florets.
• "Erigeron algidus " a daisy-like flower head one to one and a half centimeters ( 0.4-0.6 inches ) wide with a yellow center of disc florets and an outer fringe of up to 125 ray florets in shades of bright purple, pink, or white.
• The capitulum 3-4.5 cm diameter, dark red to maroon-dark brown, with a ring of six to ten ( usually eight ) broad ray florets and a center of disc florets; they have a light vanillin fragrance ( like many chocolates ), which becomes more noticeable as the summer day wears on.