Wind-pollinated flowers usually aren't brightly colored or fragrant.
Tips
memory
风 (wind) + 媒 (matchmaker / medium) - the wind plays matchmaker. Compare 虫媒 (chóngméi, insect-pollinated) and 水媒 (shuǐméi, water-pollinated). 媒 is the same character used in 媒人 (méirén, marriage matchmaker) and 媒体 (méitǐ, media).
