sulphur-flower

or sul·fur-flow·er

[ suhl-fer-flou-er ]
/ ˈsʌl fərˌflaʊ ər /

noun

a plant, Eriogonum umbellatum, of the buckwheat family, native to the western coast of the U.S., having leaves with white, woolly hairs on the underside and golden-yellow flowers.