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.
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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]