Creosote bush \Cre"o*sote bush\ A shrub ({Covillea mexicana}) found in desert regions from Colorado to California and southward through Mexico. It has yellow flowers and very resinous foliage with a strong odor of creosote.
creosote bush n : desert shrub of southwestern United States and New Mexico having persistent resinous aromatic foliage and small yellow flowers [syn: {coville}, {hediondilla}, {Larrea tridentata}]