wind-pollinated flower; anemophilous flower
Botanical term for flowers that rely on wind for pollination, as opposed to insect-pollinated flowers (虫媒花).
Rice and cedar are typical examples of wind-pollinated flowers.
Wind-pollinated flowers generally have inconspicuous petals.
風媒 is the broader concept of wind pollination; 風媒花 specifically refers to the flower itself.
Compound of 風 (wind) + 媒 (medium, intermediary) + 花 (flower), literally 'wind-mediated flower'.