firewheel

Gaillardia pulchella, a flowering plant of southern US, from Arizona to Florida, and northern Mexico.

A wheel of or on fire.

Ashes from the firewheels, spread through the fields, guarantee bumper crops for the coming seasons.

Weather conditions worsened and the bombers flew into a huge electrical storm that turned their propellers into giant firewheels, as one pilot reported, and blew them all over the sky.