brittle bushnoun fragrant rounded shrub of southwestern United States and adjacent Mexico having brittle stems and small crowded blue-green leaves and yellow flowers; produces a resin used in incense and varnish and in folk medicine Found on https://www.encyclo.co.uk/local/20974
any of several composite plants of the genus Encelia, of desert regions of the southwestern U.S. and Mexico, having alternate leaves and yellow ray flowers with a yellow or purple center. Found on https://www.infoplease.com/dictionary/brittlebush